Straight Grinding Wheel, Abrasive Wheel Type Type 1, Abrasive Wheel Diameter 7 in, Thickness 1/2 in, Arbor Hole Size 1 1/4 in, Abrasive Material Silicon Carbide, Abrasive Grit 100, Abrasive Wheel Hardness I, Max. RPM 3,600 RPM, Series 39C, Specification 39C100-IVK, Grade Fine, Bond Type Vitrified, Package Quantity 5