These Lapidary Diamond Textured Grinding Wheels are made with a cross hatch pattern that allows for fast grinding. the new textured design also prevents chipping of Lapidary and Glass. We offer both metal Hub and plastic hubs. The metal hubs are heavier which means more grinding force. Excellent quality as the regular diamond wheels, but with a grooved texture,The interrupted texture surface improves the rate of stock removal and keeps the cutting action clean,fast and free.Diamond Textured Grinding Wheels are made with a cross hatch pattern that allows for fast grinding.The new textured design also prevents chipping of Lapidary and Glass. The metal hubs are heavier which means more grinding force,We also have wheels for your Titan machine with steel ring and steel core.The plastic hubs are lighter and can be used on less powerful grinding machines,it has a 1" arbor comes withReducing Bushing Adapters to adapt to 1/2, 5/8 or 3/4 inch shafts. Available in a variety of grits and sizes.