1) Sintered segmentsm mainly for wet driling
2) Connection: 6mm shank
3) The segments are tightly bonded to the bit body and you don't need to worry about breaking the segments.
4) Size available from 6mm to 200mm.
Add: 2308,Building No.1,Xinhe Central Plaza,Jialian Street,Simiing District, Xiamen,China