3-Wing Drills SCT012080100126 Outside diameter should be the

Outside diameter should be the same size or larger than the large diameter of your router bit

Requires a 1/4"-28 thread arbor

TOOL SPECS: Carbide-tipped 18° angle dovetail bit with 1/2" large diameter

clean edges and professional finishes

3-Wing Drills SCT012080100126 Outside diameter should be theBores clean accurate holes in wood, plastic laminates, Formica, and Masonite. Carbide tipped for long life even in abrasive materials. The outside spurs outline the hole and help prevent fraying, chipping, and blowout. The replaceable 1 8 diameter high speed steel center point starts the hole and prevents the bit from walking. Replace the center point with a 1 8 drill bit if desired. Can be re sharpened or re tipped.