Use this 100 grit superfine sharpening stone for putting that final, polished, ultrafine edge on your knives. Unmounted whetstones stones must be mounted to a stone blank (sold separately) to be used with the Edge Pro sharpening systems. If you're a heavy user and go through many stones, you can remove your worn out stones from an existing stone blank and mount these unmounted stones yourself for a considerable savings. EdgePro suggests mounting the stones using 3M's Super 77 adhesive spray.
Please note that unmounted stones are very thin and so very fragile. We wrap them carefully in bubble wrap so they'll make it to you in one piece, but you must exercise extreme care when unwrapping and mounting them. We are not responsible for broken or cracked stones after they reach you.