모델 번호
3.5 ", 4", 5 ", 6", 8 ", 10", 12"
Advantages
high quality and factory prices
Hammer Size
3.5/4/5/6/8/10/12inch dth hammer
bits type
COP/MISSION/QL/DHD/SD/IR/BR/CIR
Application
water well drilling/Mining/marble quarry
Bit face
Flat/convex/concave face
Button shape
Domed/Parabolic/Ballistic botton