Irwin High Speed Steel Step Drill

The Irwin Step Drill Bit with 5mm - 28mm capacity delivers 10 hole sizes with slightly larger increments between steps, making it well-suited for applications requiring specific mid-range and larger diameter holes. This bit provides hole sizes from 5mm up to 28.3mm, offering excellent coverage for medium to larger sheet metal drilling tasks. Built for precise drilling in thin materials, this step drill bit incorporates a single flute design for maximum drilling control into sheet metal. The unique flute configuration ensures perfect round holes with every use, whilst the fluted shank prevents the drill bit from slipping in the chuck. The self-centring point eliminates the need for centre punching and prevents walking on the material surface. Features and Benefits: • 10 hole sizes: 5, 7.5, 10, 12.5, 15.2, 18.6, 20.4, 22.5, 25.5 and 28.3mm • Industrial grade M7 high-speed steel construction • Single flute design for maximum control • Fluted shank prevents drill bit slipping • Self-centring point for accurate positioning Specifications: Min. Size (mm): 5 Max. Size (mm): 28.3 No. Steps: 10