... regular size available from1.8"(45 mm)to 26"(660 mm)6,Moq:1 piece7,Bit body Color: can ... box, steel box or as your requirements Model 6-17 1/2(inch)Type tricone bits,steel ... li mestones. Size and IADC available: 3 3/4" to 26" IADC 415,435,445,417,437,517,537 ... 152.4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1/2 ... 17 1/2”),508(20”),558(22”),609.6(24”)660.4(26”) Steel tooth(IADC)111, 121, ...