The SawStop TSI-DLD Dado Lock Down Insert, model TSI-DLD, is a table saw insert made for dado cutting on compatible SawStop cast-iron saws. This is a table saw dado insert designed for zero-clearance dado cutting. If you run stacked dado blades and want cleaner grooves, more support around the cut, and a secure factory-fit insert for your saw, this is the part that does that job.

What makes a zero-clearance insert worth buying is simple: it supports the workpiece closer to the blade opening. On dado work, that can help reduce chip-out and keep smaller offcuts from dropping into a wide factory opening. For cabinet parts, shelving, and joinery where fit and edge quality matter, that extra support is not a gimmick. It is one of those accessories that makes the saw feel more purpose-built for the task at hand.

SawStop builds the TSI-DLD from a high-strength phenolic core and covers the top and bottom with a low-friction, wear-resistant melamine surface. In real use, that means the insert is made to stay stable under load while still letting stock slide smoothly across the table. The precision-machined construction also matters because an insert that sits flat and fits right is a lot less annoying than one that rocks, binds, or needs constant fiddling.

The positioning screws are there for a reason. They help you get a solid, precise fit in the table so the insert sits the way it should. That matters for clean cuts, predictable material support, and consistent work when you are batching out grooves or rabbets. SawStop also includes a positive locking latch, which gives you tool-free operation when you need to remove or reinstall the insert during blade changes or setup.

Compatibility is the big thing to check before you buy. This insert is intended for SawStop cast-iron saws using 8 inch dado blades. Source data specifically calls out compatibility with ICS, PCS, and CNS saws, and it also specifically states that it is not compatible with the SawStop JSS-120A60 jobsite saw or the CTS-120A60 compact table saw. If you own one of the cast-iron cabinet or contractor platforms, this is the right kind of accessory to keep on hand when your work shifts from standard ripping to joinery and groove cutting.

Who should buy it? Woodworkers, cabinet installers, trim carpenters, and serious DIY users who already own a compatible SawStop table saw and plan to run dado sets. If you rarely cut dados, you may treat this as a task-specific accessory. If you build casework, shelves, drawers, or built-ins on a regular basis, it is more of a must-have than an optional add-on.

Why the SawStop TSI-DLD Dado Lock Down Insert earns a spot in the drawer

If you own a compatible SawStop and cut dados with any regularity, this is the insert you want instead of trying to make a standard opening do a specialty job.

• Who it's for: SawStop ICS, PCS, and CNS owners doing cabinet work, shelving, joinery, or clean groove cuts.
• Why it stands out: The fit features are right, the material is durable, and the tool-free locking setup makes it practical to swap in when the job calls for a dado stack.
• Worth knowing: This is not a universal table saw accessory. Check your saw model first, because it is not for the jobsite or compact SawStop saws.

• What kind of saw is this insert made for? It is made for compatible SawStop cast-iron saws, specifically ICS, PCS, and CNS models.
• Can it be used with an 8 inch dado blade set? Yes. Source data states that this insert is designed for use with 8 inch dado blades.
• Will it fit the SawStop jobsite saw or compact table saw? No. It is not compatible with the JSS-120A60 jobsite saw or the CTS-120A60 compact table saw.
• What is the insert made from? It uses a precision-machined phenolic core with a low-friction, wear-resistant melamine surface on the top and bottom.