Description The Milwaukee RED HELIX Cobalt Drill Bit is engineered for extreme durability and long life in hard metal applications. Featuring a VARIABLE HELIX design with a 35 degreeâ15 degree helix angle and a 135 degree split point tip, this bit ensures precise starts and prevents walking for fast, accurate holes in hard metal, PVC, and wood. The ENHANCED TAPERED WEB strengthens the core for increased flute durability, making it ideal for tough applications and providing up to 15X the life of standard Black Oxide Drill Bits.Product Details:Cobalt alloy provides up to 15X life vs. Black Oxide Drill Bits135 degree split point tip for precision starts and no walkingENHANCED TAPERED WEB strengthens the bitâs coreVARIABLE HELIX design for rapid material extraction3-Flat Secure-Grip helps keep the bit fixed in the chuckDesigned for hard metals, PVC, and wood