The STB step drill bit with a flat cutting edge is suitable for drills D = 18 mm and is made of galvanised steel. It is used to pre-drill twist lock holes for floor duct covers.
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Products
steel, galvanic zinc plated
| Products | D diameter | W Weight per storage unit | bookmark |
|---|---|---|---|
| STB 9/18 | 9 mm | 0,120 kg |
