a) Best abrasives from Diamond Innovation, e6. b) 13 years in Honing and Grinding. c) Full line of honing stones, honing tools We manufacturer a full range of diamond honing stones, CBN honing stones, honing tools, mandrels, hone head, adapters, wedges, retainers, alignment bushes, trueing sleeves in China. Our honing abrasives are designed for Sunnen, Nagel, Gehring, Nissin, Fuji, Mas and other ...