1.PDC drill bit 2.best price 3.wide size code 4. ... Y3107/M715 PDC drill bit are as following:1.using a self-sharp-type sintering in tungsten carbide impregnated carcass on a ... have many industry experts in research and manufacture of diamond bit, also with many technical staff familiar with drilling. ... and so on.Here is the range of tricone drill bit:sizebit typein.mm6152.4136,127,517,537,617,6376 ...