SHOWIRK HSS Step drill bit is a drill bit that has the tip ground down to a different diameter.
4-20mm have 9 steps:4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm
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Step Drills
SHOWIRK
STD0420
| Specification | Pack Qty | Code |
| HSS-G Titanium Step Drill 4-20mm | 1 | STD0420 |
| Specification | Pack Qty | Code |
| HSS-G Titanium Step Drill 4-20mm | 1 | STD0420 |