Edge Pro Un-mounted 400 Grit Fine Stone Aluminum Oxide - UM400D
EPUM400D: 400 Grit Un-mounted Fine Stone
Edge Pro Inc
Use the 400 grit aluminum oxide water stones for achieving a fine edge on your blade. Un-mounted stones must be mounted to a Stone Blank to be utilized with the Edge Pro sharpening system. Those who go through many stones can remove their worn out stones from the existing stone blank and mount their un-mounted stones themselves, saving some money. We suggest mounting the stones using 3M's Super 77 adhesive spray for best results.