Check the listing for details. Razor Sharp Edgemaking 8in Grit Wheel 8x.75x.625. Condition: New. Listed at 51.98 USD. NEW, Razor Sharp Edgemaking 8in Grit Wheel, 8x.75x.625, 151129, Replacement 8 inch grit wheel, To be used with the Razor Sharp Edgemaking System, Sharpen knives, scissors and serrated edges, Great for polishing, Absolutely the fastest, easiest way to put an edge on tools that we have ever seen! In fact it impressed us so much that we kept the system set up in our shop and now hone all of our tools with it before each use. Two laminated paper wheels, one for grinding and one for buffing, fit any 5/8" arbor bench grinders (includes spacer to adapt to 1/2" arbors). The use of the silicon carbide grinding compound and jewelers rouge buffing compound on the two wheels allows you to produce a mirror finish while virtually eliminating the chance of "bluing" your tool (the wax on the silicon.