... for the difference in overall reaming shell length. Combined high quality and design make our reaming shells the best ... catalog. Surface-set diamond reaming shell NQ & HQ impregnated diamond core bit 6mm & 12mm Surface-set diamond core bit Drill rod ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Diamond reaming shell NQ, HQ, PQ, NQTT, HQWL, T2, T6, NMLC, HMLC