Irwin High Speed Steel Step Drill 4mm – 22mm

Description

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: 4, 6, 8, 10,12, 14, 16, 18, 20 and 22mm.Additional Information:• Min. Size (mm): 4• Max. Size (mm): 22• No. Steps: 10