Tungsten Carbide, 4340 High Quality Steel and Yk05 Carbide
Degree 4 46, 6, 7, 11, 12
Mining or Quarry or Well Drilling
Prevent Bits From Spinning or Becoming Detached
Hard or Very Hard Rock Formation
High Performance Cost Ratio
Carton Box for Each Piece or as Requirement
ISO9001-2000, SGS
Xiamen, Fujian, China