DHD3.5, DHD380, DHD360, Mission50, Sd6, Numa120
1 Years
Galvanized
Forging
Tungsten Carbide, High Manganese Steel
Well Drilling,Coal Mining,Quarry Drilling
Air/Sea/Express
High Performance
Down The Hole (DTH) Bit
Flat;Convex;Concave
Spherical; Ballistic; Parabolic
Wooden Box or as Customers Inquire