Router Bits & Woodworking Products

Make strong joints easily! Use our carbide-tipped 5/32" or 1/8" slot cutter. Biscuit joints are much stronger than dowels or screws. The router bit ball bearing controls depth of cut for precise biscuit placement. Joining time is greatly reduced and there is no need for precise measurements or jig set up. Join corners (frame and mitre joining), edge to surface (butt and T‑joining), and edge to edge joints easily and perfectly. Use item #5155 spiral upcut bit to cut slots in the center of the board which would be beyond the reach of a slot cutter.

Biscuit Joinery Instructions (PDF)

Q: Does the router bit make all biscuit joints?
A: Yes. MLCS Biscuit Kits can make all the joints a machine can, including edge-to-edge and edge-to-face corners, plus some joints that machines can’t do, such as face frames and narrow rails and stiles.
Q: When making a biscuit joint, do I plunge the bit straight in like a biscuit machine does?
A: Yes, but you need to stretch the slot just a bit so the biscuit will fit. Mark pencil lines on both boards (see photo). Plunge into the wood as usual, then move the router or the work about 1/2" to lengthen the slot. This does not affect the strength or alignment of the joint since the critical dimension (5/32" or 1/8" thickness) is maintained. Here’s an easy technique for joining long boards: Run several 8"-12" long slots in each board with a slot cutting bit, then place biscuits along the length of the slot.
Glue Injector: Put the glue in biscuits slots cleanly and quickly. Use water based carpenters glue.