Advantages
High quality and factory prices
Hammer size
4" dth hammers
Shank type
DHD340, COP44, SD4, MISSON40, QL40
Outer Dia. of casing tube
5inch (140mm)
Application
Mining or marble quarry or water well drilling
Bit face
Center drop/Flat/convex/concave/double gauge face bits
Button shape
Spherical/Ballistic/parabolic/sharp/falt bottons
Wall thickness
Less than 12mm