Roller Cone bit

Shank Bk47 B47K22 Round Rotary Drill Bit Insert Bullet Teeth Cutting Pick

HDD hole opener,HDD rock reamer for best quality,We manufacture insert tooth type hole opener and milled tooth type reamer. Milled tooth bit type Reamer manufactured by our factory lead time quickly which is used to under 20Mpa formation. (diameter 220mm-1600mm can be customized as order).