Milwaukee Red Helix 1/4 In. Cobalt Drill BitMilwaukee 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

and storm water drains

The 3-flat secure-grip shank won't slip in the drill chuck

laser cut stabilizer vents trap noise & vibration

Impermeable to air

precast walls

Freeze/thaw stable

Compatible with 7/8

connector screw

Also for use with most 16 gauge straight finish nailers: Bostitch

5 GPM VOC compliant brass fan nozzle for easy coverage attaches directly to shuf-off or extension

from 5/8" to 6" diameter

Industrial and construction grade 3