HAOJIANG Unicorn Drill Shank Bk47 B47 K22 Round Rotary Drill Bit Insert Bullet Teeth Cutting Pick

Unicorn Drill Carbide Bullet Teeth use high grade alloy steel and tungsten carbide tip and adopt advanced brazing technology to produce high quality, high wear resistance, long life cutters. we also can produce all kind of rotary bits, trenching bit and flat bit according to customers’requirements.
Usage: Coal cutting, Mining, Oil drilling, Well dig, Road Milling etc.
Applicable layers: dense sand, gravel and medium hard rocks, etc..
Hardness: 50-54 HRC