- Premium grade HSS Counterbores with straight shank & pilot.
- For producing countersinking for cylindrical head screws, thread-cutting screws Ideal for burr- and chatter-free deburring and countersinking.
- Suitable for use on structural grade steels, cast iron & non-ferrous metals.
- Suitable for use with any 1/2" chuck. Can be fitted into appropriate Weldon Adapter for use with variable speed Magnetic Drills.
- Best results at low cutting speeds.
- Conform to DIN 373