Grinding Cone Abrasive Material Aluminum Oxide Abrasive Type Type 16 Compatible Tool Type Die Grinder Connector Size 3/8 In.-24 Connector Type Threaded Hole Grit 24 Overall Diameter 1 1/2 in Overall Length 2 1/2 in Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Nickel Alloy Stainless Steel Steel Titanium Tool Steel Product Type Cone Series Gemini 57A Maximum Operating Speed 24 190 RPM Specification 57A24-R Tip Type Round