Spiral bits are unsurpassed for cleaner cuts in ordinary or difficult materials, softwood, hardwood, plywood, composites, etc. Due to their spiral cutting edge which stays in continuous contact with the workpiece, these bits give a smooth, chatter-free cutting action, unlike conventional bits which have intermittent contact with the workpiece. Ground from the finest micrograin carbide stock, CMT's spiral bits feature the latest in bit geometry.

Shank: 1/2" Cutting:1-3/8" Diameter: 1/2" Length: 3-1/2"