Forney 60054 Mounted Grinding Stone with 1/4-Inch Shank， 2-1/2-Inch-by-1/4-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Shank mounted points and grinding wheels are made from durable high grade 60 grit aluminum oxide</li><li>Perfect for grinding， polishing or deburring ferrous metals</li><li>Use with 1/4-Inch chuck for high speed drills</li><li>Especially useful where larger wheels will not fit or where small abrasive wheels wear out too quickly</li><li>Max RPM is 3，450</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51DxRlEp1KL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51BZfasn8TL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51XuTFA9rUL.jpg" noproxy>