Irwin - hss tct Tip Drill Bit 4.0mm OL:75mm WL:43mm IRW10502631

General description The Irwin HSS TCT (Tungsten Carbide Tipped) drill bit is a high-quality tool designed for precision drilling in hardened materials. It features a 4.0mm diameter, a total length of 75mm, and a working length of 43mm. This drill bit is suitable for use with stationary drilling machines on materials such as hardened steel, cast iron, bronze alloys, and manganese steel. Its four-faceted ground tip ensures low drilling pressure and accurate centering, while the C2 carbide tip can drill materials up to 50 Rockwell C hardness. The body is made from hardened Chrome Vanadium Steel with a hardness of 56 Rockwell C. Technical specifications Diameter: 4.0mm Total length: 75mm Working length: 43mm Tip material: Tungsten Carbide Tipped (TCT) Body material: Chrome Vanadium Steel Hardness of body: 56 Rockwell C Compatibility and accessories Suitable for use with stationary drill presses and drilling machines Use with coolant to extend drill bit life (recommended coolant: 3-6%