Milwaukee Thunderbolt 1/2 In. Black Oxide Drill Bit Spray Adhesive 1/2" 60G Sanding Drum With

1/2" 60G Sanding Drum With Mandrel

door sweep

3/4" Wide Opening

Double wing spurs for easy hole formation

Manufactured from stainless steel wire for durability

Milwaukee Thunderbolt 1/2 In. Black Oxide Drill Bit Spray Adhesive 1/2" 60G Sanding Drum WithMilwaukee Thunderbolt Black Oxide jobber length drill bits are designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes.