1.Dia:3 1/2''--26'' 2.Type:Milled tooth & TCI 3.IADC:116,517,537,617 4.reasonable price,excellent quality 5.ISO ... . TCI:417,437,517,527,537,547,617,637,737.4.IADC code modality5.Package and shippmentCertificate:Products in details:6 ... .we are looking forward cooperating with you.Rita Feng86-18730702717. 12 1/4'' TCI ,water well rock roller