Dremel 8175 Aluminum Oxide Grind Point<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Use on metals， castings， rivets， rust</li><li>Use for sharpening， deburring and general purpose grinding</li><li>Do not run in excess of 30，000 RPM</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41PW5TX6C8L.jpg" noproxy>