TMT Miller 60mm R32 Solid Steel Drill Bit for Blast Furnaces Heat-Resistant & Impact-Resistant Design Engineered for the extreme conditions of blast ....
64D22 Three Wing Drill Bit With 64mm Diameter And High Strength Tungsten Carbide For Blast Furnace Taphole Drilling In the high intensity metallurgica...
49mm TMT Three-Wing R32 Threaded Drill Bit for Efficient Rock Drilling The TMT three-wing R32 threaded drill bit is engineered for efficient drilling ...