... Bits ,matrix body PDC bits,steel body ...3.API Tricone Rotary Bits1,Types: steel tooth tricone ... and soft li mestones. Size and IADC available: 3 3/4" to 26" IADC 415,435,445,417 ... numbers of hemispherical-shaped inserts are used in all rows to provide cutter durability and long ... .4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1 ... (13 5/8”),349.2(13 3/4”)374.6(14 3/4”)381(15”),393.7(15 ...