... shoe bit, corelifter, corelifter case, core barrel assembly, inner tube head assembly, over shot, hoist plugs, drill ... Core barrel assembly & inner tube head assembly Surface-set diamond core bit & Casing bits & Casing shoe bits Surface-set diamond reaming shell NQ & HQ impregnated diamond core ... init( { 'aImgSrc': aBigImageSrc } ); } )(); Core barrel assembly NQ, HQ, PQ, NQTT, HQWL, T2, T6, NMLC, HMLC