Irwin HSS TCT Drill Bit – 10502641

This 5mm Irwin HSS TCT drill bit is one of the most commonly used sizes in engineering and fabrication work involving hardened materials. The 5mm diameter is ideal for a wide range of fastener holes, mounting applications, and general drilling tasks in demanding materials. Equipped with a C2 tungsten carbide tip, this drill bit excels when working with hardened steel, cast iron, bronze alloys, and manganese alloyed steel up to 50 Rockwell C hardness. The four-facetted ground tip provides two essential benefits: it ensures perfect centring for accurate hole placement, and it reduces the drilling pressure required, making the operation smoother and more controlled. The Chrome Vanadium Steel body, hardened to 56 Rockwell C, offers the durability and strength needed for professional applications. This 5mm bit is designed for use with stationary drilling machines and delivers optimal performance when operated with a 3-6% coolant emulsion. Following Irwin's coolant recommendation will significantly extend the drill bit's operational life and maintain cutting efficiency. Features and Benefits: • 5mm diameter for standard fastener and mounting holes • Tungsten carbide tip handles up to 50 Rockwell C hardness • Low drilling pressure with four-facetted design • Durable body hardened to 56 Rockwell C • Supplied as pack of 1 Specifications: Tip Diameter (mm): 5.0 Working Length (mm): 52 Overall Length (mm): 86 Pack Qty.: 1 Diameter: 5.0mm. Total length: 86mm.