RENYU 5Pcs Cobalt Spot Weld Drill Bit Set Kit, Titanium 8 millimeters, BLACK
USD 29.25 USD
Specifications
| Color | black |
| Manufacturer | renyu |
| PartNumber | ry 0012 |
| Size | 8 millimeters |
| Brand | RENYU |
| MPN | RY0012 |
ADVANCED M35 COBALT HSS WITH MULTI-LAYER COATING Our spot weld drill bit set is forged from professional-grade M35 high-speed steel (HSS) with 5% cobalt content. The upgraded industrial coating combines a TiAlN base layer plus an outer black aluminum nitride (AlNi) layer – significantly boosting surface hardness, reducing friction heat, and extending bit life even when drilling repeatedly into high-strength automotive steel.