BAHCO Bahco 230-sd getrapte boor

Type 230-SD
For making holes in thin metal sheets.
Titanium-nitride coated step drill with a surface hardness that makes the
tool last 4 to 5 times longer than ordinary step drill bits. That same surface reduces friction,
resulting in a tool that runs cooler and, in effect, self-lubricates whilst running dry.
Drills holes in 13 steps from 5 to 35 mm Shank 1/2” (12.7 mm).