Irwin HSS TCT Drill Bit

This 6mm Irwin HSS TCT drill bit is a workshop essential for drilling hardened materials at a commonly required diameter. The 6mm size is extensively used across mechanical engineering, maintenance, and fabrication work for creating bolt holes, clearance holes, and mounting points in tough materials. Featuring a C2 tungsten carbide tip, this drill bit is designed to penetrate hardened steel, cast iron, bronze alloys, and manganese alloyed steel up to 50 Rockwell C hardness. The four-facetted gro