Grinding Disc 4.5X5/8-11 Masonry

United Abrasives – 20161 Depressed Center Wheel – 4-1/2″ x 1/4″ x 5/8-11″ Center Hole Thread Size, 24 Grit, Type 27 – Depressed Center Wheel, Maximum RPM: 13,300RPM, Wheel Hardness: N, Coarse Grade