Outlet Lee Valley Four-in-One Grooving Bit

A 1/2″ or 8mm shank bit with four sizes of slotting cutters for grooving, dadoing, and tongue and groove joinery. Individual double-tipped cutters will produce 1/8″, 5/32″, 3/16″ and 1/4″ grooves and, when combined, will cut grooves from 1/4″ to 23/32″ wide.

In the tongue and groove configuration, the bit is suitable for wood between 9/16″ and 7/8″ thick. When used with the ball-bearing guide, the depth of cut is 1/2″; otherwise, when used with a fence, the bit will cut up to 5/8″ deep. 1 7/8” in diameter.

Complete with spacers, shims, instructions and an advanced polymer friction-fit holder that can be mounted horizontally or upright.

This bit uses a 22mm × 8mm replacement bearing (available separately).