| Main features | |
| A (mm) | 4,0-12,0 |
| Package (pcs) | 40/320 |
| Stage quantity | 9 |
| Weight (kg) | 0,030 |
Step drill A 4,0-12,0 mm (AvtoDelo) 40812
- Used for drilling holes of a given size in a sheet metal.
- Material - high-speed steel P6M5K5, alloyed with cobalt.
- Hardened to 63-67 HRC.
- Stepped design allows to use a drill for making holes of various diameter.
- Alloying increases drills thermal stability and extends service life.
- Packaging - individual plastic case.
Barcode: 4752279408129