POWERTEC 15501 1/2" Arbor 60-Grit Silicon Carbide Grinding Wheel, 6" by 3/4" Made of green silicon carbide Designed to fit most stationary bench grinders Ideal for tool and cutter grinding of cemented carbide applications Size: 6-Inch x 3/4-Inch; Arbor size: 1/2-Inch; 60 grit Provides clean, potent tool edges and surfaces