32mm/34mm/36mm/38mm/40mm/42mm
Tungsten Carbide
Well Drilling, Metal Drilling, Masonry Drilling
China 38mm Drilling Rock Taper Button Bit
Flat, Drop Center, Convex
Spherical, Parabolic and Ballistic
as You Requirement
Stone Quarry, Coal Mining
4 Buttons/5buttons/5 Buttons/7 Buttons/8 Buttons
4 Degree/ 6 Degree/ 7 Degree/ 11 Degree/ 12degree
Competitive Price with High Quality
Carton/ Wooden Case
32mm/34mm/36mm/38mm/40mm/42mm