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 kinds and according to the requirements of customers3,Material: ally steel, tungsten carbide insert4,Color: can be as you like 5,Size: from any other regular size available from1.8"(45 mm)to 26 ...