T-Slot Cutters
T-slot cutters machine T-shaped grooves for tracks, jigs, fixtures, sliding hardware, panels and workshop setups. They are useful when a slot needs to hold bolts, stops, guides or adjustable parts.
Choose a T-slot cutter by slot width, neck diameter, cutting depth, shank size and the hardware that will fit inside the slot. A straight or spiral bit is often used first to remove the starter groove before the T-slot cutter finishes the undercut.
Use light passes, stable workholding and chip clearing to prevent heat buildup inside the slot.

Related guides: woodworking router bits guide, router bit types and uses, and router bit speed chart.
Use product filters and category links to compare size, shank, cutting profile, machine fit and application before ordering.