Check the listing for details. 5-Inch Bench Grinding Wheels Silicon Carbide GC 80 Grits Grinding Tools. Condition: New. Listed at 19.37 USD. Specification:* Color: Green* Material: Green Silicon Carbide (GC)* Granularity: 80 Grits* Outer Diameter: 125mm / 5inch* Inner Diameter: 12.7mm / 0.5inch* Height: 16mm / 0.63inch Description:* Made of green carborundum, with high hardness and the shape reminds well.* It can be applied to grinding tools and can also be used in a variety of wear-resistant tools.* Suitable for carbide tools, workpieces and non-ferrous metals, non-metallic grinding. Instructions for use* Please use at the specified maximum speed.* Please install the qualified protective cover before starting the machine.* Please select the appropriate grinding wheel for appearance and sound inspection before installation.* Newly installed or used wheels every other day should be idling for more than one minute before use. Do not stand in front of the wheel.