The Irwin Step Drill Bit with 5mm - 13mm capacity offers an impressive 13 hole sizes, providing exceptional versatility for precision work. This comprehensive bit extends from 5mm through to 35mm, making it particularly suitable for larger sheet metal applications and installations requiring a broad range of hole diameters in a single tool. Engineered for precise drilling in thin materials, this step drill features a single flute for maximum drilling control into sheet metal. The unique flute design guarantees perfect round holes, whilst the fluted shank prevents the bit from slipping in the chuck. Its self-centring point eliminates centre punching and prevents walking across the material surface. Features and Benefits: • 13 hole sizes: 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, and 35mm • Industrial grade M7 high-speed steel construction • Single flute design for superior control • Fluted shank prevents slippage • Self-centring point for accurate drilling Specifications: Min. Size (mm): 5 Max. Size (mm): 35 No. Steps: 13
