Features
- Reduces kerf clearance to the thickness of the blade
- Supports precise 90° cuts
- Designed to fit the SPT99T portable worm-drive table saw
Specifications
| Sku | SPT5004-ZC |
| Product Type | Zero clearance dado insert |
| Compatibility | SPT99T portable worm-drive table saw |
| Intended Cut Angle | 90° (supports 90° cuts) |
| Function | Reduces kerf clearance to blade thickness |
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A zero-clearance dado insert that reduces the kerf gap to the thickness of the saw blade to help produce 90° cuts. It is made to fit the SPT99T portable worm-drive table saw.
Project Ideas
Business
On-Site Scribe & Trim Cutting Service
Use the portable SPT99T with the zero-clearance insert to deliver chip-free rips and crosscuts on kitchen filler panels, toe-kicks, and scribe strips at the client’s location. Market as a dust-controlled, precision mobile service for cabinet installers and remodelers.
Custom Picture Frames & Mirrors
Offer premium frames with splined miters and razor-clean edges in figured woods and veneers. The insert’s blade-width opening reduces blowout on crosscuts and spline slots, enabling gallery-grade results with fast turnaround.
Slat Wall/Acoustic Panel Production
Produce modern slat wall and acoustic panels requiring high volumes of narrow, consistent rips. The zero-clearance insert minimizes chip-out on plywood and MDF, reducing sanding time and elevating surface quality.
Game Boards & Inlay Gift Line
Small-batch chess/checker boards, serving trays, and coasters with inlaid accents. Clean, repeatable thin-strip rips and crisp dados lift perceived quality, allowing premium pricing and wholesale opportunities.
Jig & Accessory Microbrand
Manufacture thin-rip jigs, spline-jig blanks, sacrificial sub-fences, and zero-clearance auxiliary plates sized for popular tools. The insert ensures precise, chip-free parts that assemble cleanly; sell as kits with plans and video guides.
Creative
Splined Miter Picture Frames
Cut chip-free frame parts and spline slots using the SPT99T with the zero-clearance insert. The reduced kerf gap supports clean 90° crosscuts with a miter gauge, minimizing tear-out on veneered or figured stock and producing crisp edges for splined miters.
Inlay Cutting Board with Pinstripes
Rip consistent, ultra-thin accent strips for inlay without the offcut diving into the throat thanks to the insert’s blade-thickness kerf. Glue up alternating species for a premium board with sharp, tear-out-free edges.
Kerf-Bent Curved Box Lid
Create evenly spaced kerfs to form a graceful curve in a solid-wood lid. The zero-clearance opening supports the fibers right at the cut, yielding crisp kerf walls and a smooth outside face for a refined bend.
Shaker Shelf with Dado Joinery
Cut clean, square dados in shelves and uprights using multiple passes with the blade at 90°. The insert’s tight kerf gap delivers sharp shoulders in plywood or hardwood for a snug, professional fit.
Mid-Century Slatted Bench
Batch out many narrow slats with splinter-free rips. The zero-clearance insert prevents tear-out and supports thin offcuts, producing uniform, clean-edged components ready for a flawless finish.