1, Conventional Abrasives Stone Sets; 2, H70, H50 Honing Stone Sets 3, Fit for Sunnen HT/HL/STH ... . We provide both conventional abrasives honing stones sets as well as metal bonded Diamond and CBN stone ... sets. They are completely interchangeable with the Sunnen ... using a MPS modular tooling system.Our Products Range: D2 tools, K, L, BL, P28, P20, R28, H70, ...