... 26'' hole reamer bit 2.Type:Milled tooth & TCI 3.IADC:116,517,537,617 4.ISO,SGS approved ... 5.hole reamer bit hole reamer bit1.Type:TCI & Milled tooth2.Available size:3.Available IADC code ... tooth:116,117,126,127,136,137,216,217. TCI:417,437,517,527,537,547,617,637,737 ... ISO,SGS5.Package and shippment6.Payment terms:T/T & L/C acceptable7.SGS approved,custom-madeProfessional factory, sample can ...