HSS Cobalt Fully Ground Drill Bit 4mm - Pack of 10
- Fully ground HSS Cobalt drill bit manufactured to DIN 338.
- 5% Cobalt helps to increase life of drill bit.
- 135° Split point is self-centring for easier penetration.
- Efficient clog-free swarf clearance.
- Suitable for drilling high carbon steel and stainless steel.
- High-density case for safe storage.