Grizzly G5937 Razor Sharp System, 8-Inch Turn your standard 1/2-Inch- arbor bench grinder into a super sharpening system razor sharp uses two 3/4-Inch x 8-Inch wheels - one that's charged with a special abrasive grit Razor sharp uses two 3/4-Inch x 8-Inch wheels - one that's charged with a special abrasive grit, the other, a slotted wheel that's used with white rouge - to provide a honing and bench polishing system capable of delivering professional-quality edges on knives, scissors, chisels, punches and other precision-edged tool blades Kit includes 180 grit silicon carbide sharpening grit white rouge and conditioning grease Included removable bushing allows the system to fit 6" bench grinders and buffers with 1/2" and 5/8" arbors