
PROJAHN Short twist drills with cylindrical shank HSS-G TiN DIN 338 type SN – Ø mm 7,5, L 109, L2 69 (29075)
Code: 29075 · Brand: Projahn · Accessories & bits · On order · Price on request
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The drill bit has a TiN tip coating
Thanks to the TiN tip coating, the service life is extended at the same cutting values, or higher cutting values can be used to increase productivity
The drill bit has all the positive properties of a drill bit with full TiN coating
Up to 400% longer service life compared to uncoated drill bits
Specifications
| Article No. | 29075 |
|---|---|
| EAN | 4000146290750 |
| Ø mm | 7,5 |
| L | 109 |
| L2 | 69 |
| Quality level | Professional |
| Standard(s) | DIN 338 |
| Tolerance | h8 |
| Material | HSS-TIN |
| Point grind | Conical relief |
| Point angle | 130° |
| Point thinning | Special optimised split point form C |
| Core thickness | Thicker than normal |
| Drilling depth | 5x diameter |
| Core taper | Heavy (2-stage reinforced) |
| Side rake angle (helix angle) | 35° - 40° |
| Other design features according to | DIN 1414 |
| Tool holder | Cylindrical |
| Application | Cast iron, graphite |
| Packaging | Quadro Pack 10 pieces each up to Ø 10; 5 pieces each from Ø 10.2 |











































































































































