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

ManoMano

Irwin Step Drill Bit. Number of hole sizes: 10. Hole diameters: 4, 6, 8, 10,12, 14, 16, 18, 20 and 22mm. 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.

Zoro Tools

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.

Amazon

IRWIN, 133 years of ingenuity and excellence Single flute for maximum drilling control Flattened shank prevents the drill bit from slipping in the chuck Self-centring point eliminates centre punching Made from industrial grade M7 high-speed steel, Weight: 0.09 Pounds, Manufacturer: Stanley Black & Decker