Place of Origin
Henan, China
Model Number
ZW4201 (1.5*2 pieces)
Name
PDC Anchor Roof Bolt Drill Bits
Application
Coal mine, water canservancy & hydropower
Meterial
the best diamond & sintered carbide
Diameter
25~42mm, 2 and 3wings
Color
Golden, silver, blue grey, black, etc.
Material
the best diamond & sintered carbide