1. Bit breaker is mainly used to screw on or off a rock bit to the bottom of drill string.
2. It can also prevent the rock bit from dropping into well hole.
3. The price of it is cheap and the use of it is safety and reliable.
4. It is easy to operate. First, the bit breaker is placed on well hole and then put the rock bit onto it. Turn it to screw on or off the bit by turn plate.
