Irwin 10502854 drill bit Step drill bit

— Single flute for maximum drilling control into sheet metal.<br>- Unique flute design ensures perfect round holes in sheet metal.<br>- Self-centring point — will not walk. Eliminates centre punching.<br>- Made from industrial grade M7 high speed steel.<br>- Flatted shank prevents the drill bit from slipping in the chuck.IRWIN 10502854. Proper use: Drill, Drill bit type: Step drill bit, Drill bit diameter: 3.5 cm