Milwaukee 31/64" COBALT RED HELIX™ Drill Bit is expertly engineered for exceptional durability and extended life in demanding hard metal applications. Featuring a unique variable helix design with an aggressive 35° helix angle tapering to 15°, this cobalt drill bit ensures Rapid Chip Removal™ to reduce heat buildup and maintain sharpness longer. The 135° split point tip provides a precise start and prevents walking, enabling fast and accurate hole drilling. for tough jobs, this drill bit up to 10 times the lifespan of Black Oxide Drill Bits™ and is suitable for all twist drilling tasks. Model Number: 48-89-2328