Irwin HSS TCT Drill Bit

This 11.5mm Irwin HSS TCT drill bit delivers precision drilling at a larger intermediate diameter for industrial applications in hardened materials. The 11.5mm size is particularly valuable for specific engineering tolerances and applications where standard 11mm or 12mm sizes don't provide the exact clearance required. The C2 tungsten carbide tip is specifically engineered to penetrate hardened steel, cast iron, bronze alloys, and manganese alloyed steel, handling materials up to 50 Rockwell C hardness. The four-facetted ground tip ensures excellent centring accuracy from initial contact, which is essential at larger diameters for maintaining tight tolerances and preventing deflection. The reduced drilling pressure design makes operation smoother and more efficient. The Chrome Vanadium Steel body is hardened to 56 Rockwell C, providing exceptional durability and rigidity under demanding conditions. Designed for stationary machine applications, this 11.5mm drill bit performs optimally when used with a 3-6% coolant emulsion as recommended by Irwin. The coolant application is crucial for maintaining cutting efficiency and maximising the operational life of the drill bit. Features and Benefits: • 11.5mm diameter for precise engineering tolerances • Tungsten carbide tip handles up to 50 Rockwell C hardness • Four-facetted grind for reduced drilling pressure • Hardened body for strength and longevity • Pack of 1 Specifications: Tip Diameter (mm): 11.5 Working Length (mm): 94 Overall Length (mm): 142 Pack Qty.: 1 Diameter: 11.5mm. Total length: 142mm.