... with API and ISO 2.Manufacturer of diamond pdc bit 3.all sizes od diamond bit PDC drill bit 1) Sealed rolling ... 7/8,8 1/2,8 3/410 5/8,12 1/413 3/4, 17 1/2,22, 24,26417 ... 7/8,8 1/2,8 3/410 5/8,12 1/413 3/4, 17 1/2,22, 24,26115 ... /8,12 1/413 3/4, 17 1/2,22, 24,26M223,M322,M316,M222,M416,M122 12-1/4"GD1606 diamond PDC ...