Heller HSS-Co Cobalt Twist Drills DIN 338 RN
- Heller 21242 7, This 9.5mm HSS-Co cobalt twist drill from Heller is equipped to tackle the toughest drilling jobs in stainless steel & metal. It is made from a special HSS steel with a 5% cobalt content. Sold singly. Heller 21242 7 0990 HSS-Co Cobalt Twist Drill DIN 338 RN 9.5mm
- Single