Hall 4-20mm Step Drill HLLMC7M

The Halls MC High Speed Steel Step Drill provides an easy way to cut the hole size you want. Each tool cuts parallel hole sizes. For use on sheet metal to stated maximum thickness.

Size range.4,6,8,10,12,14,16,18,20mm.
Maximum Material Thickness. 4mm.
Shank to fit size. 10mm.

When drilling metals always use a coolant.