Round Tip Grinding Plug, Abrasive Material Aluminum Oxide, Abrasive Type Type 18R, Compatible Tool Type Die Grinder, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grit 24, Overall Diameter 2 in, Overall Length 3 in, Primary Material Applicationn Aluminum, Brass, Bronze, Cast Iron, Copper, Nickel Alloy, Stainless Steel, Steel, Titanium, Tool Steel, Product Type Plug, Series Metal 57A, Maximum Operating Speed 18,145 RPM, Specification Norton Metal, Tip Type Round, Package Quantity 10