Drill rod_ Casing pipe in 1.5m and 3m NQ, HQ, PQ T2, T6, LTK NMLC, ... . 1.5m and 3m Drill rod & Casing pipe: Size Available: "Q" series: AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, ... bits & Casing shoe bits Surface-set diamond reaming shell NQ & HQ impregnated diamond core bit 6mm & 12mm ( function(){ ... oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Drill pipe NQ, HQ, PQ, NQTT, HQWL, T2, T6, NMLC, HMLC