... and polycrystalline diamonds.Geotool can supply products as belows:Q Series AQ, BQ, NQ, HQ, PQT SeriesT36, T46 ... , TBW, TNWWF SeriesHWF, PWF, SWF, UWF, ZWF WT Series RWT, EWT, AWT, BWT, NWT, HWT (Single Tube ... /Double Tube) WG Series: EWG, AWG, BWG, NWG, HWG (Single Tube/Double ... Tube) WM Series EWM, AWM, BWM, NWM T2/T6 Series T256, T266, T276, T286, T2101 ...