IRWIN Step Drill Bit 5-28.3 mm (10 Hole) IRW10502855

The Irwin Step Drill Bits are designed for precise drilling in thin materials and have a single flute for maximum drilling control into sheet metal. Their unique flute design ensures perfect round holes in sheet metal. A fluted shank also prevents the drill bit from slipping in the chuck, along with a self centring point that will not walk and eliminates centre punching. Made from industrial grade M7 high-speed steel.Irwin Step Drill Bit. Number of hole sizes: 10.Hole diameters: 5, 7.5, 10, 12.5, 15.2, ... - Manufacturers part numbers: IRW10502855|10502855

• IRWIN, 133 years of ingenuity and high quality
• For drilling sheet metal
• Made from industrial grade M7 high-speed steel
• Self-centring point eliminates centre punching
• Flattened shank prevents the drill bit from slipping in the chuck
• Single flute for maximum drilling control