Ansen Tools AS-453 Grit Sharp Premier 8-Inch Double Sided Diamond Sharpener Coarse/Medium with a Non-Skid Rubber Base<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Double-sided coarse 220 grit-medium 400 grit with advanced monocrystalline technology</li><li>Guaranteed flat surface will provide years of constant service</li><li>The coarse diamond grit is ideal for a rough or uneven surface， while the medium diamond grit quickly smooths and sharpens a dull or damaged edge</li><li>Sharpens the toughest materials including tool steel， carbide， titanium and ceramics</li><li>Two stage sharpening ideal for cutlery knives， woodworking tools， gardening tools and machine tools</li></ul></div><img src="http://ecx.images-amazon.com/images/I/413MxfKHDZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41K-SZOHZXL.jpg" noproxy>