Drill Doctor DA31320GF 180 Grit Diamond Replacement Wheel for 350X， XP， 500X and 750X<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diamond sharpening wheel</li><li>Holds up to carbide， titanium and cobalt material</li><li>Replacement wheel for Drill Doctor models 350X， 500X and 750X</li><li>180 grit</li><li>Weighs 6.4 ounces shipped</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61MaXMV-OuL.jpg" noproxy>