Heller HSS-Co Cobalt Twist Drills DIN 338 RN
- Heller 21283 0, These 4.2mm HSS-Co cobalt twist drills from Heller are equipped to tackle the toughest drilling jobs in stainless steel & metal. They are made from a special HSS steel with a 5% cobalt content. Sold in packs of 10. Heller 21283 0 0990 HSS-Co Cobalt Twist Drills DIN 338 RN 4.2mm
- Pack Of 10