Countersink Set Guide and 4" overall length for

and 4" overall length for use in routers with a 5/8" collet

1-5/8" large diameter

CHIPBREAKERS: These spirals have brief interruptions along the cutting edge which allow for stringy materials to be cut into chips without wrapping around the bit or sacrificing cut quality

This drill will go through thick composites in half the time and last up to 20 times longer than high speed jobber drills

straight bit with 17/32" cutting diameter

Countersink Set Guide and 4" overall length forWhitesides 82 Countersink Heads are designed to slip over the drill bit and affix with dual set screws into the flutes. Adjust the drilling length by sliding the head up or down the bit. Use to countersink holes in wood, plastic, or aluminum for flat head screws. Matching drill bits are included in this set. Contains: 8060006 and 8071416 (#6 Screw), 8060008 and 8071728 (#8 Screw), 8060010 and 8072010 (#10 Screw), and 8060014 and 8072514 (#14 Screw).