IRWIN Step Drill Bit 5-28.3mm (10 Hole Sizes), M7 HSS

The IRWIN Step Drill Bit is engineered for precision drilling in thin materials, featuring a unique single flute design that provides maximum control when working with sheet metal. Its specialised flute geometry guarantees perfectly round holes, while the fluted shank prevents slipping in the chuck for secure operation.

This industrial-grade bit is crafted from M7 high-speed steel (HSS), ensuring durability and long-lasting performance even with frequent use. The self-centring point eliminates the need for pre-drilling or centre punching, allowing for clean, accurate holes from the first insertion.

Key Features:

• Single flute design for controlled drilling in sheet metal
• Fluted shank prevents chuck slippage
• Self-centring point eliminates wandering
• Industrial-grade M7 high-speed steel construction
• Creates perfectly round holes in thin materials

With 10 graduated hole sizes (5-28.3mm), this versatile step drill bit eliminates the need for multiple individual bits, saving time and improving efficiency in your workshop.