Milwaukee Red Helix 5/16 In. Cobalt Drill Bit Permatex the better the seal

the better the seal

or warp at high temperatures

but lightweight making this tool ideal for overhead tasks

Chain holds and locks around anything

and driving spikes/wedges

Milwaukee Red Helix 5/16 In. Cobalt Drill Bit Permatex the better the sealMilwaukee 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