... , HW casing tube: BW, NW, HW, HWT2.Core barrel: BQ,NQ,HQ,PQ , head assembly and assembly 3.AQ,BQ,NQ,HQ,PQ, T2 ... , T6 etc. Diamond core bit, reaming shell & shoe bit ... .Drill tool: hoisting plug(standard and heavy duty), water swivel(compact plus and standard), overshot, outer tube & inner tube wrench, foot clamp,etc.