Metal drill bit set, 19-piece- Application: Alloyed and unalloyed steel, copper, brass, aluminium, plastics- Shank: Cylindrical- Design: Break-proof due to high elasticity and toughness- DIN: 338 RN- Consisting of: - Drill bit ø (mm): 1-10 (in 0.5 mm increments)Replacement drill bits, 6 pieces- Con ...