HSS Sheet Metal Step Drill Set, 3 pcs.

Quick-helix drill bit set 3 pcs, sheet quick-helix drill bit in the most-common diameters 3 – 14 mm, 6 – 20 mm, 16 – 30.5 mm, made of HSS steel, with spud tip, for stepless drilling of smaller to larger diameters in thin sheets – no pre-drilling, burr-free thanks to a corner breaker, for steel sheets, nonferrous metals and plastics, in a blister storage bag.