1.Dia:3 1/2''--26'' 2.Type:Milled tooth & TCI 3.IADC:116,517,537,617 4.reasonable price,excellent quality 5.ISO,SGS approved Rock Bit1.Type:TCI & Milled tooth2.Available size:3.Available IADC code of rock bits Milled tooth:116,117,126,127,136,137,216,217. TCI:417,437,517,527,537,547,617,637,737.4.IADC code modality5.Package and shippmentCertificate:Products in details:6.Payment terms:T/T & L/C ...