1. 2005 IRWIN Industrial Tools Step Drill Bit Product Application STEP DRILL BIT Single flute for maximum Made from industrial grade M7 high speed steel eae control into sheet FLATTED SHANK SINGLE FLUTE UNIQUE FLUTE DESIGN SELF CENTRING POINT prevents the drill bit from for maximum drilling ensures perfect round will not walk eliminates slipping in the chuck control into sheet metal holes in sheet metal centre punching Part Description EAN Master Qty 10502851 2M 5 Hole sizes 4 mm 12 mm 2 mm increments 0038548111025 25 10502853 4M 10 Hole sizes 4 mm 22 mm 2 mm increments 0038548111049 10502855 PG29M 10 Hole sizes 0038548111940 5 7 5 10 12 5 15 2 18 6 20 4 22 5 25 5 28 3 mm 10502857 ISO PG 13 Hole sizes 0038548111967 5 5 7 5 9 7 12 7 15 2 16 2 18 6 20 4 22 5 25 4 28 3 30 5 32 5 mm