SUPPLY OF POLYCRYSTALLINE DIAMOND COMPACT(PDC) 5-7/8 IN., DRILLING BIT SIZE AND TYPE AS SPECIFIED LEVEL OF INSPECTION: 2 (L.O.I.: 2) API SPEC 7-1/ISO 10424-1 SHOULD BE DIE STAMPED ON THE TOP OF THE BIT 5-7/8 X 3-1/2 IN. STR445XL, HUGHES