1,M0886Q PDC bits 2,best price 3,certificate by API 4,delivery on time 5,cover all models 1,Types: pdc drill bit ... which are used for mining pilling, water well drilling or oil well drilling2,Model: various ... ,Bit body Color: can be as you like: matrix body,pdc cutters8,Certification: API9,Applicable f Moq:1 piece or: petroleum ...