Saitech High Performance Pipeline Depressed Center Wheel, 4-1/2 in Dia x 1/8 in THK, 7/8 in Center H
2, ANSI Z87.SAIT Saitech Pipeline Depressed Center Wheel, High Performance, 4-1/2 in Wheel Dia, 1/8 in Wheel Thickness, 7/8 in Center Hole, Arbor Connector, 24 Grit, Coarse Grade, Ceramic Alumina Oxide Abrasive, Wheel Type Number: Type 27, 13300 rpm Maximum, Resinoid Bond, Applicable Materials: Ferrous Metals, High Tensile Alloy and Stainless Steel, Wheel Hardness: R, Black Wheel, Reinforced: Yes, Specifications Met: ANSI B165.