A collection of drill bits. These are high-speed steel (HSS) drill bits made of steel and coated with titanium trinitride. This provides corrosion resistance and helps the tool keep a sharp edge | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4432 px × 4432 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |