Check the listing for details. NEW AccuSharp DELUXE Tri-Stone Sharpener System 025C Bench Stone Sharpening Kit. Condition: New. Listed at 53.58 USD. Your workshop is about to get a lot sharper with the Tri-Stone Deluxe Sharpening System from AccuSharp. With 3 stone surfaces to choose from, and the ability to quickly and easily switch between them, the Tri-Stone Deluxe is ready to go to work. NEW! The AccuSharp DELUXE Tri-Stone Knife Sharpening System, featuring a course diamond-coated steel, allowing you to easily sharpen and hone any straight-edge blade with ease. AccuSharp’s three stone surfaces include coarse diamond, medium alumina-oxide, and fine ceramic. This deluxe Tri-Stone System provides extra durability and safety on any surface with a rubber-grip base which prevents sliding while sharpening and honing your knives. Additionally, the deluxe Tri-Stone Sharpener base can be mounted to most countertops for extra stability. Also included is an angle guide to assist in maintaining a consistent angle while sharpening.