The Diamond Grinding Wheel - Steel metal hubs are ideal for those seeking a heavier grinding force. Our Diamond Lapidary Grinding Wheel with steel hub is made with the highest quality diamonds for longer grinding life, clean and faster cutting for cabochon machines, lapidary equipment and supplies for rock-hounds and hobbyists. These Diamond Grinding Wheels are heavier which means more grinding force.Diamond Grinding Wheels with steel hub Made with highest quality diamonds for longer grinding life, clean and faster cutting for cabochon ,lapidary ,Glass,Gemston,Lens,rock-hounds and hobbyists,such as glass grinder,lens grinder,bench grinder,Cabbing Machines,Faceting Machines, cab lapidary machine and Lapidary Grinder Polisher Can be used on all conventional grinders made today. Such as Hans,Diamond Pacific, Barranca, Maxant, Graves, as well as other cabbing machines suit for grinding hard materials ,Th…