... your requirements are. Size Available: "Q" Series: AQ, BQ, NQ, HQ, PQ (Front end & Back end Type) T Series: T36, T46 ... detailed specifications or catalog. Surface-set diamond reaming shell NQ & HQ impregnated diamond core bit 6mm & 12mm Surface-set diamond core ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Diamond reaming shell NQ, HQ, PQ, NQTT, HQWL, T2, T6, NMLC, HMLC