a) Use the World Best Abrasvies (Dia Innovation) b) 13 years in Honing and Grinding c) Honing abrasvies, Hone head, 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 ...