Item No.:
943112102015
Type
| Bore Diameter | 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 mm |
| Gradation Length | 4 mm |
| Total Length | 80 mm |
| Shaft-Ø | - |
Product Description
- Straight grooved
- CBN-grinded
- With 2 blades, cross-grinded, edge breaker
- Nut Diameter laser-sintered
- A Special shaft prevents slipping of chuck
- Applicable with materials up to 6 mm wall thickness
- Drilling and deburring all in one working procedure
- By Cylindric gradation the new drilling hole results
- The sharpening of the next grade deburrs the smaller hole diameter
- To raise the lifetime we recommend o use reaming paste
- Application
- Step drill bit for burr-free drilling and reaming of sheet metals and profiles made of Steel up to 850 N
- Surface - Blank
