Irwin HSS TCT Drill Bit 3.5mm Pack of 1

This 3.5mm Irwin HSS TCT drill bit provides excellent capability for drilling hardened materials where slightly larger hole sizes are required. The 3.5mm diameter is commonly used in mechanical assembly work and for creating clearance holes in hardened steel components. The C2 tungsten carbide tip is engineered to drill through materials up to 50 Rockwell C hardness, including hardened steel, cast iron, bronze alloys, and manganese alloyed steel. The four-facetted ground design delivers two key