A zero clearance insert is a replacement throat plate whose opening around the blade is cut to the exact width of the blade kerf, so the workpiece stays fully supported right to the cut line and the bottom edge stops tearing out. It drops into the table saw throat opening, gets leveled flush with the cast iron top, and then the blade itself mills the slot on the first pass.
That matters more than most buyers expect. A stock throat plate leaves a wide opening by design, because the plate has to clear the blade at full height, and that gap is what lets plywood splinter underneath, lets narrow offcuts drop through and wedge against the blade, and lets a workpiece sag at the cut line where it can kick back. I spent six weeks cycling through inserts on a contractor saw and a portable saw, and the tear-out difference on a half sheet of birch ply is the first thing you notice.
This guide covers the best zero clearance inserts for table saws we could find that are genuinely table saw parts. We left out band saw and miter saw inserts, which show up in plenty of search results and do nothing for your table saw. If you are still choosing a saw, start with our table saw buying guide and our contractor saw picks before you hunt for parts.
Table of Contents
- Top 3 Zero Clearance Inserts for Table Saws in 2026
- The Best Zero Clearance Inserts for Table Saws in 2026, At a Glance
- What a Zero Clearance Insert Does for Your Cuts
- 1. Bosch TS1005 Zero Clearance Insert Assembly for 4100-Series Saws
- 2. Peachtree Phenolic Zero Clearance Insert with Snug Fit Tabs
- 3. ZEROSERT Delta-Compatible Zero Clearance Inserts with Dado Blank, 3-Pack
- 4. Leecraft DW-3 Zero-Clearance Insert for DeWalt Contractor Saws
- 5. UHMW Zero Clearance Insert for the Delta Uni-Saw
- 6. Leecraft RG-6 Zero-Clearance Dado Insert for the Ridgid R4512
- 7. CNC Custom Designs Zero Clearance Inserts for DeWalt, 4-Pack
- 8. SawStop TSI-SLD Standard Lock Down Insert
- 9. UHMW Zero Clearance Blank for Craftsman and Ridgid Belt Drive Saws
- 10. Leecraft DW-2 Zero-Clearance Insert for DeWalt DW744 and DW746
- Which Zero Clearance Insert Fits Your Table Saw
- Material Guide: MDF, Phenolic, UHMW and Why the Difference Matters
- How to Install and Verify a Zero Clearance Insert Safely
- Buy vs. DIY: When to Machine Your Own Insert
- Frequently Asked Questions
- Final Verdict on the Best Zero Clearance Inserts for Table Saws
Top 3 Zero Clearance Inserts for Table Saws in 2026
These three cover the widest range of real setups. The Bosch plate is the most proven, the CNC Designs pack gives you four matched plates, and the Leecraft DW-2 is the most rigid option for the common DeWalt contractor platform.
Bosch TS1005 Insert
- Fits 4100XC-style saws
- Blade-thickness kerf slot
- Quick drop-in install
CNC Designs DeWalt 4-Pack
- Four plates per set
- Leveling screws included
- Accounts for table fabric
The Best Zero Clearance Inserts for Table Saws in 2026, At a Glance
All ten plates below are real table saw inserts. Read the fit line carefully, because an insert is machined for one throat opening and does not transfer between saw brands.
| Product | Key Specs | Pricing |
|---|---|---|
| Bosch TS1005 Insert |
|
Check Latest Price |
 Peachtree Phenolic Insert |
|
Check Latest Price |
 ZEROSERT Delta 3-Pack |
|
Check Latest Price |
 Leecraft DW-3 for DeWalt |
|
Check Latest Price |
 UHMW Insert, Delta Uni-Saw |
|
Check Latest Price |
 Leecraft RG-6 for Ridgid |
|
Check Latest Price |
| CNC Designs DeWalt 4-Pack |
|
Check Latest Price |
 SawStop TSI-SLD Insert |
|
Check Latest Price |
| UHMW Blank, Craftsman and Ridgid |
|
Check Latest Price |
| Leecraft DW-2 for DeWalt |
|
Check Latest Price |
What a Zero Clearance Insert Does for Your Cuts
The insert solves four problems at once, and only the first one gets talked about.
No tear-out on the underside. The workpiece is supported underneath all the way to the blade, so plywood and veneer stop splintering on the exit side.
Small parts cannot drop in. A narrow offcut that used to fall through the factory gap and wedge against the blade now has nothing to fall into.
Less kickback risk. A workpiece that is supported to the cut line cannot sag downward and grab the blade.
A usable measuring reference. Once the blade is centered in the slot, the kerf edge becomes an accurate stop for measuring board widths from the edge of the table.
One forum observation we agree with: the back edge of the opening does not need zero clearance, only the front edge where the cut happens. That is why a plate with a rear relief pocket still works well.
1. Bosch TS1005 Zero Clearance Insert Assembly for 4100-Series Saws
Bosch TS1005 Zero Clearance Insert Assembly for Table Saws Red 4100, 4000
Fits 4100XC-style table saws
Kerf reduced to blade thickness
13.75 inch by 3.75 inch plate
- Widest compatibility with 4100-series saws
- 832 reviews of long-term fit
- No complicated machining required
- Light 4 ounce plate
- Kerf slot must be cut to your saw opening
- Needs care to burn in evenly
- Has to fit and square before first use
This is the plate with the deepest bench history in the category, and it earns the top spot on volume alone. At 832 reviews it has been through more saws and more owners than anything else we tested, and the 4.4 average holds up because the failures that do show up are fit problems rather than quality problems.
It ships as a blank that you fit to your throat opening, and the kerf slot gets cut with your own blade. That is a feature for most people. You end up with a slot that matches your exact blade, your exact blade height, and your exact blade condition, rather than a slot cut to a factory average that might be a fraction too wide for a thin kerf.
What you need to know before you order
Measure your existing throat plate and compare it to the listing dimensions of 13.75 inch by 3.75 inch by one half inch. Zero clearance inserts are saw specific, and the number one reason a plate arrives and does not drop in is a mismatch against the throat opening rather than anything wrong with the plate itself.
The plate is listed as high speed steel in the specifications, which is thinner and more springy than a phenolic or MDF blank. It still delivers the tear-out improvement because the support is what does the work, but owners who switch from this to a phenolic plate usually report a stiffer feel at depth of cut.
Who should skip it
If you run a dado stack, this single plate only solves one kerf width. Cut a second one, or budget for a dedicated dado plate. If you want the plate to hold itself down without a set screw or a retaining pin, this is a bare drop-in and you will want to watch it shift under heavy ripping pressure.
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2. Peachtree Phenolic Zero Clearance Insert with Snug Fit Tabs
Peachtree Woodworking Supply Phenolic Zero Clearance Insert compatible
High density phenolic body
Sand-able snug fit side tabs
Top and side snug fit screws
- Rigid phenolic resists flex during cuts
- Adjustable fit instead of a bare press fit
- Reduces tear-out on both faces
- Kerf works for thin
- standard and dado use
- Must be measured against your specific saw opening
- Light sanding usually needed
- Separate plate needed for dado sets
This is the one we recommend when you are not confident the plate will fit on the first try. Instead of relying on a press fit, it gives you sand-able side tabs plus a top and side snug fit screw, so you can dial the fit in rather than hoping for it.
Phenolic is the right material for the job because it is rigid, dimensionally stable and takes repeated blade contact without softening. At 1.2 pounds it feels substantial in the hand and it does not flex as a workpiece passes over it, which is exactly the behavior you want when the depth of cut has to stay consistent.
Buyers credit it with killing kickback from small cutoffs, and the listing itself pushes hard on measuring your factory insert before ordering. Owners describe light sanding of the tabs as a normal installation step rather than a defect, which is a fair way to look at it.
Where the adjustment feature earns its keep
If your saw has an aluminum flange or an odd throat recess, a plate that only presses in is a gamble. The tabs let you take out a few thousandths where it binds and add a shim where it rocks, and the side screw keeps lateral play out after you level the height. That combination is why this plate shows up as a recommendation more often than any other phenolic option here.
It also works with thin kerf and standard kerf blades out of the box, and with dado sets once you cut a second plate. Colors can vary from the listing photos, which does not matter functionally but surprises people.
Who should skip it
If you want zero drilling, routing or filing, keep looking. This one expects a little fitting work. And if your saw is a SawStop, the splitter hardware interacts with the opening in a way this plate does not address.
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3. ZEROSERT Delta-Compatible Zero Clearance Inserts with Dado Blank, 3-Pack
ZEROSERT Zero Clearance Table Saw Inserts w/DADO – Delta Compatible – 36-725, 36-725T2, 36-5152, 36-5000, 36-5000T2 Table Saws (3-Pack)
Commercial grade MDF
Three identically machined plates
Blank for dado slots
- Three plates share one set of leveling adjustments
- Through-holes reach the leveling screws without removal
- Under-blade relief lets a full-size blade cut the kerf
- Stiffer than the factory steel plate
- MDF sands very quickly if you are aggressive
- Edges damage easily when dropped
- Occasional plates arrive warped
This pack is built around a single idea: one set of leveling adjustments should serve every blade setup you own. Because all three plates are machined identically along the mounting rabbet, once the screws are set you can swap between rip and crosscut plates, or between a standard kerf and a dado stack, without re-leveling anything.
It covers Delta 36-725, 36-725T2, 36-5152, 36-5000 and 36-5000T2, which is most of the portable Delta line people actually own. The through-holes let you reach the leveling screws without pulling the plate out, and the relief cutout under the blade slot means you can fit it with a full-size blade already installed instead of swapping to a smaller blade to start the kerf.
Experienced woodworkers dominate the reviews here, and they compare these favorably to plates they made themselves. The consensus is that the MDF is stiffer than the thin factory steel and gives a more consistent depth of cut. Several buyers report better results fitting the plate with the blade removed rather than following the written screw procedure.
Why the pack format is the real feature
Two of the three plates have riving knife cutouts and one is a solid blank you cut your own dado slot into. That is the pattern most shops end up at anyway. You end up with a dedicated plate per kerf width, which is the only honest way to get true zero clearance on a stack, because a dado stack is many times wider than any single-blade slot.
Budget three to fifteen minutes of sanding per plate once you read the instructions. That is normal for an MDF blank and not a sign of poor quality.
Who should skip it
If your Delta has a throat plate style that does not match the rabbet these plates are machined for, the fit is wrong and sanding will not save it. Also skip it if you drop tools onto concrete regularly, because MDF edges chip and there is no easy repair once the mounting rabbet is nicked.
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4. Leecraft DW-3 Zero-Clearance Insert for DeWalt Contractor Saws
Leecraft DW-3 Zero-Clearance Dado Table Saw Insert for Dewalt Saws (Colors May Vary)
Fits eight DeWalt contractor saws
13-9/16 by 3-3/4 by 29/64 inch
Low-friction phenolic
- Covers the full DeWalt contractor range
- Cuts to match your exact blade or dado
- Reduces chip-out on both surfaces
- Holds flat through rip and crosscut work
- Factory splitter must be lowered or removed
- Verify dimensions before ordering
- Color varies between runs
The DW-3 is the broadest fitment in the Leecraft range, covering DW744, DW745, DW746, DWE7480, DWE7490X, DWE7491RS and DWE7499GD. If you own a DeWalt contractor saw and you want one insert that covers the platform rather than a single model number, this is the plate.
Reviewers at a 4.6 average focus on rigidity and flatness as the reason chip-out and splintering drop. The plate is cut with a dado blade or a regular blade so the slot is a perfectly matched fit to whatever you are running, which matters more on DeWalt than on many saws because the factory plate tends to rock.
At 1.1 pounds and 16 inch by 3 inch by 3 inch overall, it is a solid phenolic body with low friction at the surface. Instructions are included, which sounds minor until you are standing at the saw trying to work out the leveling sequence.
Read the splitter warning carefully
The listing states plainly that the factory splitter and guard are incompatible with this insert and must be lowered or removed. That is not a defect, it is a geometry conflict between a full guard assembly and a plate that fills the opening. Decide before you install whether you want the guard active, because removing it is a real safety trade-off on a saw that ships with it.
Measure first. The plate is 13-9/16 inch by 3-3/4 inch by 29/64 inch and the manufacturer asks you to verify before ordering.
Who should skip it
Skip it if you rely on the factory guard every day and are not willing to run without it. Also skip it if you want a plate that arrives ready to drop in, because this one is cut by you and takes router or saw time to open up.
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5. UHMW Zero Clearance Insert for the Delta Uni-Saw
UHMW Tablesaw Zero Clearance for Delta Uni-Saw 13-3/8″x 3-3/4″ x 1/2″
UHMW plastic
13-3/8 by 3-3/4 by one half inch
Corner height set screws
- Tight fit in the Delta Uni-Saw opening
- Solid material that reduces chip-out
- Custom fit kerf slot cut with your own blade
- Works well with an add-on splitter
- UHMW flexes and will not stay flat if bent
- No thumb hole so removal is awkward
- Needs a smaller blade to start the kerf
This is an affordable plate in the group and it does exactly one thing well. Owners on the Delta Uni-Saw platform report a very tight fit that levels up cleanly, and several pair it with a separate add-on splitter for full kerf support.
The catch is material, and the reviews are honest about it. UHMW is a tough plastic that resists moisture, but it is springy, it has no thumb hole for removal, and it is not predrilled at the back, which means you need a smaller blade to start the kerf slot before running your full-size blade through.
At 4.3 with a 7 percent one-star share, this is the lowest-rated plate we included, and the one-star reviews are not about the concept. They are about flex, the loose set screws, and the lack of a relief pocket.
When the material choice is worth it
UHMW does not swell, so in a damp or unheated shop it behaves better than unsealed MDF. It also cuts and machines easily with hand tools, which is why it works as a first insert for someone learning the process. If your main worry is a shop that gets cold and damp in winter, this material is genuinely low risk.
The set screws at the corners let you level it flush with the table, and once you tighten them down the plate stays put through normal ripping.
Who should skip it
Skip it if you expect the plate to stay flat after it has been bent once, or if you cut bevels regularly. It is listed as not usable for 45 degree miter cuts without modification, because a thin plastic plate cannot support the workpiece at an angle.
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6. Leecraft RG-6 Zero-Clearance Dado Insert for the Ridgid R4512
Leecraft Ridgid R4512 Table Saw Zero-Clearance Dado Insert
Fits the Ridgid R4512
15-1/8 by 3-3/4 by 1/8 inch
Phenolic with coated face
- Highest five-star share of the group at 82 percent
- Phenolic stays rigid in unheated shops
- Hole pattern matches factory leveling screws
- No warp over multi-year use
- Access holes may need minor modification
- Fit can be very tight out of the box
- No riving knife slot on this version
The R4512 has a thin factory plate, which is why owners keep upgrading it. This phenolic replacement holds its dimensions in shops with big temperature swings, and that dimensional stability over years is the deciding advantage over the metal plate the saw ships with.
At 1.04 pounds with a coated friction surface, it drops into place, takes the factory height adjustment screws, and a rear set screw removes the last of the play. Reviewers describe the fit as only a few thousandths of slack before the screw takes it out. There is a finger pull hole, so removal is not a fight.
The listed dimensions are 15-1/8 inch by 3-3/4 inch by 1/8 inch for the actual insert, with a 15.5 inch by 4.7 inch by 1.1 inch shipping size. Buy it for the R4512 specifically, not for a generic Ridgid.
What the reviews single out
Buyers point out that because the R4512 plate is thin, the leveling screw access holes occasionally do not line up perfectly and need a small mod. That is a saw quirk rather than a product flaw, and it is the single most common caveat in the reviews. Long-term owners report inserts still performing years after installation.
The phenolic body is what makes the difference at depth of cut, giving more consistent dado and groove depth because the plate does not flex as the workpiece passes.
Who should skip it
This version has no riving knife slot, so if you run the factory riving knife on the R4512 it will not work as shipped. It also commands more than the OEM plate, which is a hard sell if your main goal is simply closing the gap on a budget saw.
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7. CNC Custom Designs Zero Clearance Inserts for DeWalt, 4-Pack
Cncdesigns Zero Clearance Inserts (4-Pack) for DeWalt 744, 745, 746, 7480, 7491 & 7491RS, 7490 Table Saws
Four inserts plus leveling screws
13-9/16 by 3-3/4 by 1/4 inch
MDF base with low friction top
- Highest average rating in the roundup at 4.7
- Four plates for separate blade setups
- Machining accounts for the table fabric
- Leveling screws included in each set
- Soft MDF base can chip in early use
- Riving knife must be removed or modified
- Supplied screws have sharp pointed tips
Four plates in one set is the reason this one makes sense. You can dedicate a plate to your standard blade, one to a thin kerf blade, one to a dado stack, and keep one in reserve, which is the strategy experienced woodworkers land on once they understand that one insert cannot serve multiple kerf widths.
At 4.7 with 80 percent five-star ratings and essentially no one-star feedback, this is the highest rated plate in the roundup. DeWalt contractor saw owners report a snug, well machined fit needing minimal sanding, and several single out the fact that the design accounts for the table fabric inside the opening, a detail many competing plates miss.
Leveling screws come in each set, and the low friction white top surface over an MDF base keeps the workpiece moving smoothly. Seller support is responsive and reportedly includes a handwritten note, which sounds minor but tells you something about the fit testing.
Check your model number before you order
These fit DeWalt 744, 745, 746, 7480, 7491, 7491RS and 7490. They are explicitly not for the 7485 and DWE7485 models, which use a different insert sold separately. Getting that wrong is the fastest way to end up with four plates that will not go in.
The riving knife situation is similar to the Leecraft plates. This version is not intended for use with the riving knife in place, and cutouts have to be made by the user if you want that function.
Who should skip it
Skip it if you run the riving knife every cut and will not modify the plates. Also expect to grind the tips off the supplied wood screws before you install them, because several buyers report the pointed tips marking the table surface.
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8. SawStop TSI-SLD Standard Lock Down Insert
SawStop TSI-SLD Standard Lock Down Insert
OEM SawStop part
Positive locking latch for tool-free use
Dual metal wear plates
- Locking latch beats aftermarket alignment
- Factory exact replacement part
- Swaps between blade setups in seconds
- Sits flat instead of rocking
- Most expensive insert in the roundup
- Must be burn-in cut for each blade angle
- SawStop saws only
- Reduces tear-out without eliminating it
If you own a SawStop, this is the part that fits. It is compatible only with the SawStop Industrial Cabinet Saw, Professional Cabinet Saw and Contractor Saw, and it is the OEM part rather than an aftermarket substitute.
The positive locking latch is the whole story here. Owners who tried aftermarket inserts report they did not align well and could not sit flat, while the OEM design clamps the plate down and holds it. Swapping between thin kerf, standard kerf and bevel plates takes seconds.
Pre-formed clearance slots and dual metal wear plates handle the wear that comes from repeated blade contact. It carries a one year manufacturer warranty, and at 16 ounces it is the lightest plate in this group.
Why repeat purchase is normal with this plate
Each blade angle burns in its own slot, so buyers keep one plate for 90 degree cuts and another for bevels. That is not a flaw in the design, it is how zero clearance works. Expect to buy a second plate rather than trying to force bevel cuts through a 90 degree slot.
Owners also report meaningfully reduced tear-out on the exit side of the cut, while being candid that it is reduced rather than eliminated.
Who should skip it
Skip it entirely if you do not own a SawStop. It will not fit any other brand. And if you are comparing it against generic blanks purely on cost, the answer is that you are not comparing the same category of part.
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9. UHMW Zero Clearance Blank for Craftsman and Ridgid Belt Drive Saws
UHMW Tablesaw Zero Clearance for Craftsman/Ridgid 14″x 3-3/4″ x 3/16″
UHMW plastic blank, 14 inch by 3-3/4 inch by 3/16 inch
Fits 1988 and newer 10 inch belt drive models
Blank you cut to your own kerf
- Fits vintage saws with no OEM insert
- Closes the oversized factory gap
- Leveling set screws included
- Cuts cleanly starting with a 7.5 inch blade
- UHMW is flexible and warps easily
- Four set screws cannot fully restrain a thin plate
- Roll pin latch is not effective
- Warping during shipping is common
This is the plate for the saw nobody makes parts for. It fits most 1988 and newer 10 inch belt drive models, including Ridgid TS-2412, TS-2424 and TS-2400, and it is sold into the vintage Sears 113 and old Craftsman contractor saw crowd where OEM plates are simply gone.
At 4.2 with a 9 percent one-star share, this is the lowest rated item we included, and it is the only one where a meaningful group of buyers calls the product outright bad. The complaints are not about the concept. They are all about the substrate, which is thin and springy at 3/16 inch and can arrive bowed or crowned.
The value proposition is clear though. Owners of vintage saws report excellent results once the kerf is cut, because the factory gap on those machines is enormous and small cutoffs really did ride back into the blade. Storage orientation matters if you want it to stay flat over time.
How to work around the thin flexible plate
Start the kerf with a smaller blade and finish with the full-size blade, which is standard practice with any blank. Some owners supplement the four set screws with their own fasteners or shims because a thin plate held by four screws can still shift during a cut. Treat it as a shop plate rather than a show piece.
The included roll pin latch is not effective on its own, so plan to supplement it or accept a plate that needs checking after every setup change.
Who should skip it
Skip it if you have a modern saw with a real OEM plate available, because a phenolic or MDF plate will simply be stiffer. Also skip it if a bowed plate would bother you, since the flexibility that makes it machinable by hand is the same thing that makes it hard to keep flat.
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10. Leecraft DW-2 Zero-Clearance Insert for DeWalt DW744 and DW746
Leecraft DW-2 Zero-Clearance Table Saw Insert for DeWalt Model DW744 and DW746
Phenolic laminate with bonded melamine face
Measures 13-5/8 inch by 3-3/4 inch
Precut blade bottom pocket
- Rigid phenolic stays flat at depth of cut
- Precut pocket means a full-size blade can open the kerf
- Leveling
- lateral and anti-lift hardware
- Reduces noise
- dust
- chip-out and splintering
- Only fits the DW744 and DW746 platform
- Costs more than generic plates
- Some buyers still do light fitting work
The DW744 and DW746 are among the most common contractor saws in the hobby market, which is why this is the insert most buyers land on. At 332 reviews and 4.6, it has a long track record on a specific platform rather than a broad but shallow one.
The detail reviewers call out most is the precut blade bottom pocket. It means you do not have to drop to a smaller blade to start the kerf slot, you can open it with the full-size blade installed. On top of that, leveling and lateral adjustment screws plus a rear anti-lift pin hold the plate positively in place instead of relying on friction.
The high density phenolic laminate carries a bonded melamine surface, which is why owners report reduced noise and dust along with less chip-out and splintering. It is the most complete hardware package of any plate in this roundup.
What the fitment narrowness means for you
This plate covers two models only, so confirm you own a DW744 or a DW746 before ordering. If you have a newer DWE7491, the CNC Designs pack or the Leecraft DW-3 is the correct choice, and this one will not go in.
Owners still describe doing light fitting work before first use, so plan for ten minutes of checking and adjustment rather than a pure drop-in.
Who should skip it
Skip it if you want one plate to cover several DeWalt models, because this is the narrowest fitment of any Leecraft option here. It also costs more than generic aftermarket plates, which is only worth it if you value the rigid phenolic and the anti-lift hardware.
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Which Zero Clearance Insert Fits Your Table Saw
Zero clearance inserts are not universal. The plate is machined against one throat opening, one throat recess depth, and one leveling screw pattern, which is why every listing in this roundup tells you to measure before you order.
Ridgid R4512: the Leecraft RG-6 is machined for it directly, with the factory screw pattern.
Ridgid TS-2400, TS-2412 and TS-2424: the UHMW blank fits most 1988 and newer 10 inch belt drive models.
DeWalt DW744 and DW746: the Leecraft DW-2, with a precut blade pocket and anti-lift pin.
DeWalt DW745, DWE7480, DWE7490, DWE7491 and DWE7491RS: the Leecraft DW-3, or the CNC Designs four pack for the same family. Do not order either for the 7485 or DWE7485, which use a different insert.
Delta 36-5000, 36-5000T2, 36-5152, 36-725 and 36-725T2: the ZEROSERT three pack covers all of these and includes a blank for dado slots.
Delta Uni-Saw: the UHMW plate sized 13-3/8 inch by 3-3/4 inch.
Bosch 4100XC-style saws: the Bosch TS1005.
SawStop Industrial Cabinet, Professional Cabinet and Contractor: the SawStop TSI-SLD, which is the OEM part and fits no other brand.
Old Craftsman, Powermatic 64B, vintage Atlas and unlisted contractor saws: there is usually no insert made for your opening. Buy a phenolic or UHMW blank and machine it yourself.
For any saw not on that list, the DIY route is the honest answer. Measure the length, width and recess depth of your throat opening, take the number to a phenolic or MDF blank, and cut the slot with the saw itself. Forum woodworkers overwhelmingly describe making their own as the satisfying solution once they know it is a normal weekend project.
Material Guide: MDF, Phenolic, UHMW and Why the Difference Matters
Fit determines whether the plate goes in. Material determines whether it is still flat and rigid in five years.
Phenolic resin is the premium choice and the one most experienced buyers ask for. It is rigid, dimensionally stable, does not swell with moisture and takes repeated blade contact without softening. Peachtree, Leecraft and SawStop all build in phenolic, and it is what we would choose for a shop that runs daily.
High density MDF is the community consensus for blanks and machined plates alike. It machines easily, holds a slot accurately and does not warp the way plywood does. Its weakness is moisture, which can be managed by sealing the edges and faces with gloss poly or paste wax, and by not storing it against a cold wall. It also sands very quickly, so aggressive fitting removes material faster than you expect.
UHMW plastic resists moisture better than anything else here and machines by hand, which makes it popular for older saws with no OEM part. The tradeoff is flex. A thin UHMW plate held by four set screws can shift during a cut and will not recover once it is bent.
Plywood and solid hardwood blanks are what most first-time builders reach for, and they are the most common source of forum complaints. Plywood warps and bends in a shop with seasonal humidity changes, hardwood moves with the grain, and a warped insert is both a non-flush surface and a genuine safety problem. If you build your own, use MDF or phenolic.
One forum tip worth repeating: a low friction surface matters more than buyers expect. A melamine or UHMW facing reduces the drag as a wide sheet good is pushed across the plate, which is where a raw MDF top can grab.
How to Install and Verify a Zero Clearance Insert Safely
Six steps, and the order matters more than the tools.
Measure before you cut. Record the length and width of the existing throat opening and the recess depth from the table surface down to the bottom of the throat.
Drop the plate in dry. It should sit within the opening with no side play once the snug fit screw is engaged. If it rocks, shim it before anything else.
Set the height screws first. Bring the plate flush with the cast iron surface and check with a straightedge across the joint, not just by eye.
Verify full blade clearance with the blade lowered. With the blade fully down, slide the plate in and out. If it binds against the arbor or the blade guard, stop and trim before going further.
Only then raise the blade to burn in the kerf. Run the blade through the plate on several passes at the height it will normally cut at. The plate is cutting its own slot to match your blade exactly.
Re-check flushness afterwards. MDF and phenolic both move a little while the slot is being cut. Level the plate again once the kerf is finished.
Never raise the blade through a blank until the plate is verified flush and fully supported, because a warped or undersized insert is a kickback and blade deflection hazard. Do not reach into the throat opening to adjust anything while the blade is up. Unplug the saw before any fitting work, and treat a plate that lifts or shifts as something to fix immediately rather than work around.
On riving knives, read the listing carefully. Several inserts in this roundup, including the Leecraft DW-3 and the CNC Designs four pack, are not intended for use with the factory riving knife in place and either require a cutout or the knife removed. Generic aftermarket blanks frequently lack the splitter slot entirely, which means you cannot use your saw’s stock safety hardware with them.
One insert cannot serve every kerf width. A thin kerf blade, a standard kerf blade and a dado stack each need their own slot, which is why multi-plate packs and the included blanks for dado slots exist.
Buy vs. DIY: When to Machine Your Own Insert
Forums ask this constantly, and the honest answer depends on your saw and your patience, not on your skill level.
Buy it when your saw is on the compatibility list above, when you want the leveling and anti-lift hardware already figured out, or when your saw has an active guard assembly that the plate needs to be machined around. A precision machined plate that arrives matched to your model will beat a hand-cut one on consistency.
Make it when your saw has no insert made for it, when you run several blades and want a matched set, or when you want a plate with a rear relief cutout and finger hole built exactly the way you like it. Experienced builders use a master blank as a router template and setup tool, then cut a batch of blanks at once so every plate in the set is identical.
In time and money terms, a commercial plate saves an evening of measuring and fitting, and a DIY plate costs one sheet of material plus the wear on a router bit. Neither is dramatically cheaper. The deciding factor is fit: a machined plate that matches your throat opening is worth more than a cheaper plate you have to fight.
If your saw is a portable or jobsite model, fit is usually the tightest constraint. Our portable table saw picks and jobsite saw guide cover which models use which throat standard, and a hybrid saw changes the fitment question entirely because the throat opening is cast into a steel top.
Frequently Asked Questions
What is a zero clearance table saw insert?
A zero clearance insert is a replacement throat plate whose opening around the blade is cut to the exact width of the blade kerf. The workpiece stays fully supported to the cut line, which stops tear-out on the underside, keeps small offcuts from falling through and wedging against the blade, and makes the kerf usable as a measuring reference.
Are zero clearance inserts universal?
No. Each plate is machined for one throat opening, one recess depth and one leveling screw pattern, so a plate for a DeWalt 744 will not fit a Delta 36-725. Measure your existing throat opening and compare it to the listing dimensions before ordering. For saws with no insert made for them, buy a phenolic or MDF blank and machine it yourself.
Where can I find zero clearance inserts for my table saw?
Start with the OEM part for your saw brand, then look at the aftermarket plates listed for your exact model number. Model numbers in the listing title are the single strongest signal that a plate will fit. If your saw is an older Craftsman, Powermatic, vintage Atlas or an unlisted contractor saw, no insert will be manufactured for it and you will need a blank.
Will a zero clearance insert work with a riving knife?
Only if the plate has a cutout for it. Several inserts are explicitly not intended for use with the factory riving knife in place and require the knife to be lowered, removed, or a cutout made by the user. Generic aftermarket blanks often have no splitter slot at all, which means you cannot use the saw’s stock safety hardware with them.
How do I make a zero clearance insert for my table saw?
Measure the throat opening length, width and recess depth, cut a blank from MDF or phenolic slightly undersize, rout or file the mounting rabbet and the leveling screw access, then drop it in and set the height screws flush. With the blade fully lowered, raise it through the plate in several passes so the blade cuts its own slot to the exact kerf width. Finish by re-checking flushness.
Does zero clearance tape work?
Not as a substitute. Tape applied to the table surface helps slightly with small tear-out on the top face, but it does not remove the throat plate gap, cannot support the workpiece at the cut line, does not stop small parts from dropping through, and does nothing about kickback. It is a finishing touch, not a fix.
Final Verdict on the Best Zero Clearance Inserts for Table Saws
The Bosch TS1005 takes the editor’s choice because it has the deepest bench record of anything in this category, with 832 reviews on a plate that directly replaces the worn factory opening on 4100-series saws. For the most rigid option on the common DeWalt contractor platform, the Leecraft DW-2 is the better buy, and the CNC Designs four pack is the value pick if you want a separate plate per blade setup.
Whatever you choose, measure your throat opening first, verify the plate sits flush before you raise the blade through it, and plan on one plate per kerf width. That last point is the one that separates people who are happy with their insert from people who wonder why it stopped working.