PFERD Performance Line SG Depressed Centre Cut-Off Wheel, Aluminum Oxide Abrasive, 46 Grit, Medium Grit Grade, 5/8 in Arbor, 15300 rpm Speed, 4 in Diameter, 3/32 in Thickness, Applicable Materials: Cast Iron, Sections, Sheet Metal, Solid Material and Steel, Suitable for: Angle Grinders