Sizes: 4-5-6-7-8-9-10-11-12 mm
Common Characteristics
- 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 whist running dry
- Drills holes from 4 to 12 mm in 1 mm increments
- Shank 1/4" (6 mm)
Technical Data
| Parameter | Value |
|---|
| Diameter A | 4-5-6-7-8-9-10-11-12
mm |
| Total length B | 62
mm |
| Shank diameter C | 6.35
mm |
| Usable length D | 40
mm |