Irwin 10502666 7.5mm HSS TCT Tip Drill Bits

General description This high-quality IRWIN® HSS TCT tip drill bit is designed for precision drilling in hardened materials. It is suitable for use with stationary machines and is ideal for drilling through steel, cast iron, bronze alloys, and manganese steel. The drill bit features a durable chrome vanadium steel body, hardened to 56 Rockwell C, and a four-faceted ground tip that allows for low drilling pressure and accurate centering. The C2 carbide tip is capable of drilling materials with a hardness of up to 50 Rockwell C. Technical specifications Diameter: 7.5mm Total length: 109mm Working length: 69mm Body material: Chrome Vanadium Steel, hardened to 56 Rockwell C Tip material: C2 Carbide Maximum hardness of material: 50 Rockwell C Usage For optimal performance and extended lifespan, it is recommended to use a coolant during drilling. A 3-6% emulsion is suggested to help prolong the life of the drill bit.