... 4,delivery on time 5,cover all models 1,Types: pdc drill bit which are used for mining pilling, water well ... ,Bit body Color: can be as you like: matrix body,pdc cutters8,Certification: API9,Applicable f Moq:1 piece or: petroleum ... different and suitable types12,Button bit: small tooth, big tooth,conical inserts,chisel inserts13,Packing: in wooden case or steel case14 ...