Gator GatorBlade Masonry Grinding Wheel 4 *Diameter: 4 in. *Thickness: 1/4 in. thick *Arbor Size: 5/8 in. *Product Type: Masonry Grinding Wheel *Number in Package: 1 pc. *Maximum Speed: 15300 rpm *Arbor Type: Type 27 *Compatibility: Angle Grinders *Material: Aluminum Oxide *Usage: Masonry *Packaging Type: Bulk *Discovery CON, NBR, SUP, EXP