Square Tip Grinding Plug Abrasive Material Aluminum Oxide Abrasive Type Type 18 Compatible Tool Type Die Grinder Connector Size 5/8 In.-11 Connector Type Threaded Hole Grit 24 Overall Diameter 2 in Overall Length 4 in Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Nickel Alloy Stainless Steel Steel Titanium Tool Steel Product Type Plug Series Gemini 57A Maximum Operating Speed 18 145 RPM Specification 57A24-R Tip Type Round