Conical PDC cutter Manufacturer Conical PDC cutter for petroleum drilling of roller bits,button bit,DTH bits Conical PDC Mainly used for Roller bits,DTH bits,Button bits etc. percussion drillingWe can supply 1016,1118,1217,1318,1621,1926 etc as requested. Advantage of Spherical polycrystalline diamond compact PDC insertA. Selected higher quality diamond powder, improved the sintering technique, ...