Irwin 10502853 4 22mm Step Drill Bit (10 Holes)

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.PTDIRW10502853

General description The IRWIN® Step Drill Bit is engineered for precise drilling in thin materials, particularly sheet metal. It features a unique flute design that ensures perfect round holes and a single flute for maximum drilling control. The fluted shank prevents slipping in the chuck, while the self-centering point eliminates the need for center punching. Technical specifications Material: Industrial grade M7 high-speed steel Number of hole sizes: 10 Hole diameters: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, and 22mm