Description1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of ... Read More
Description Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just ... Read More
Description Suitable choice of raw material, advanced processing technology and perfect quality warranty. With hardened treatment, drilling life can be extended and then cost can be reduced. Size range 4.5,5,5... Read More
QL80 DTH hammer bits with tail pipe Description 1. has higher drilling speed. 2. can provide hardening treatment in order to prolong the service life and reduce the cost of use. 3. single impact power is large, ... Read More