Check the listing for details. G5938 8" x 3/4" Gritted Wheel for G5937. Condition: New, Made in US. Listed at 33.95 USD. This is a direct replacement 8" x 3/4" Wheel for the G5937 8" Razor Sharp System. This wheel is coated with Silicon Carbide and is used to develop a burr or wire-edge along the cutting edge. Conditioning Wax (a special formula of fats, oils and waxes) is applied to the grit wheel to lubricate and control heat (not included).