... bit,Roller Cone Bits ,matrix body PDC bits,steel body ...3.API Tricone Rotary Bits1,Types: steel tooth tricone bit (mill ... , clays, salts and soft li mestones. Size and IADC available: 3 3/4" to 26" IADC 415,435,445,417,437,517 ... model we can provide: 60mm,65mm,76mm,93mm,95mm,98mm(3 7/8”),101.6mm,114mm,118mm,120mm,127mm(5”)130 ... (7 7/8”)212.7mm(8 3/8”),215.9mm(8 1/2”),222.2mm8 3/4”) 241.3(9 1/2”),244.4 ...