Milwaukee Red Helix 29/64 In. Cobalt Drill Bit Shaw Rockwool delivers the sound absorption

Rockwool delivers the sound absorption you want and the fire resistance you need

Replacement handle available

and 3 mounting screws

grit-to-backing bond

Milwaukee Red Helix 29/64 In. Cobalt Drill Bit Shaw Rockwool delivers the sound absorptionMilwaukee Cobalt RED HELIX Drill Bits are engineered for extreme durability and long life in hard metal applications. Designed with a Variable Helix that includes an aggressive 35 degree Helix Angle which ends at 15 degree, the Cobalt bits with RED HELIX provide Rapid Chip Removal limiting heat buildup to Stay Sharper Longer. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Ideal for tough