Irwin HSS TCT Drill Bit – 10502620

This 3mm Irwin HSS TCT drill bit is a popular choice for general precision drilling in hardened materials. The 3mm diameter strikes an excellent balance between strength and versatility, making it suitable for a wide range of applications in workshops and manufacturing environments. Designed for use with stationary machines, this drill bit features a C2 tungsten carbide tip that can penetrate hardened steel, cast iron, bronze alloys, and manganese alloyed steel up to 50 Rockwell C hardness. The four-facetted ground tip design ensures perfect centring from the first contact, whilst reducing the drilling pressure required – particularly beneficial when working with harder materials. The Chrome Vanadium Steel body is hardened to 56 Rockwell C, providing excellent durability and resistance to wear. For optimal performance with this 3mm bit, Irwin recommends using a 3-6% coolant emulsion during drilling operations to maintain cutting efficiency and extend tool life. Features and Benefits: • 3mm diameter for versatile drilling applications • Tungsten carbide tip handles materials up to 50 Rockwell C • Four-facetted ground for superior centring • Durable Chrome Vanadium Steel body • Single drill bit per pack Specifications: Tip Diameter (mm): 3.0 Working Length (mm): 33 Overall Length (mm): 61 Pack Qty.: 1 Diameter: 3.0mm. Total length: 67mm.