1.Dia:3 3/4''--26'' 2.Type:TCI 3.IADC:417,517,537,617 4.reasonable price,excellent quality 5 ... .ISO,SGS 9 1/2'' TCI Tricone Bit1.Type:TCI 2.Available ... approved,custom-madeProfessional factory, sample can be offer in 5 days.Rapid resonse to your needs:we will be ... forward cooperating with you.Mary AnSkype:jinlunbit86-15833795072. 9 1/2'' TCI tricone bit