... 1. Manufacturer of Reaming Shells 2. Over 30 years Experiences 3. Protect borehole without hole shrinka ReamerDiamond Reaming ShellReaming shells are ... can supply products as belows:Q Series AQ, BQ, NQ, HQ, PQT SeriesT36, T46, T56, T66, T76, T86, TEW, TBW, TNWWF ... are warmly accepted according to specific customers requirements. 3C (4-3/8" diameter) Diamond Reamer