... 5.delivery on t 1,Types: pdc drill bit which are used for mining pilling, water well ... to the requirements of customers3,Material: ally steel, tungsten carbide insert4,Color: can be as you like 5,Size ... mm)to 26"(660 mm)6,Moq:1 piece7,Bit body Color: can be as you like: matrix ... hard formation .We have different and suitable types12,Button bit: small tooth, big tooth,conical inserts,chisel inserts13, ...