4 inch dhd340 dth drilling hammer with best price
1. Non-Blocking:Our down the hole hammers are proved to ensure extremely low rate of blocking during it works.
2. High Efficiency:The well drilling equipment carries with larger power of impact frequency and torque, thus ensuring faster penetration. Compared with others, the efficiency can be improved 10%.
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Q: What are your Shank types for dth drilling hammer?
A: Shank types including COP, QL,DHD, MISSION,HD,IR, SD,TD, etc.
Q: What are the sizes?
A: High air pressure dth drilling hammer from 3" to 12"(76mm-304mm)
Q: Are you a factory or a trading company?
A: We are a professional factory in designing and manufacturing high quality drill bits
Q: Can you offer us the free samples?
A: Normally we do not offer free samples, but we could properly adjust according to detailed requirement.
