5mm drill bit for hard metals
TTP HARD cobalt metal drill bits are used by professional installers, locksmiths and diy enthusiasts.
They are suitable for drilling harder metals and stainless steel.
These 5mm cobalt drill bits have been tested and certified for hardness.
As with any cobalt drill bit care should be taken when drilling:
- Only use required amount of pressure when drilling
- Always use a drilling lubricant
- Use the correct drilling speed
- Rest your drill bit during application to prevent overheating