Rock bits are divided into steel tooth bit and TCI tricone bit. The size is 4 3/4’’, 5 1/2’’, 6’’, 6 1/2’’, 7 1/2’’, 8 1/2’’, 9 1/2’’, 10 5/8’’, 11 5/8’’, 12 1/4’ ...
Hejian Ouman Mining Bits
Main Products: tricone bit, pdc bit, hole opener, drag bit... More