Irwin HSS TCT Drill Bit 11mm Pack of 1

This 11mm Irwin HSS TCT drill bit provides robust drilling capability for larger holes in hardened materials. The 11mm diameter is ideal for substantial mounting applications, larger structural fasteners, and industrial drilling operations where you need reliable penetration through hardened steel, cast iron, and bronze alloys. Equipped with a tungsten carbide tip, this drill bit is engineered to handle materials up to 50 Rockwell C hardness with precision and reliability. The four-facetted grou