... including drill rod, wireline core barrel (AQ-PQ) and assemblies, synthetic diamond core bits, natural diamond surface-set core bit, PDC bits (core ... or noncoring), casing shoes, reaming shells, overshot, hoisting plug, water swiel, wrench. 1.Drill rod: BQ, NQ ... , HQ, PHD, BT, NT, HT and BW, NW, HW casing tube: BW, NW, HW, HWT2.Core barrel: BQ,NQ ...