Put it in a drill, lock the trigger, and it will give you a miniature grinding wheel, perfect for sharpening small knives and tools such as pocket knives, hunting knives, or gardening shovels.

Diameter 1-4/5 inches Thickness 0.3 inches Wrap 0.08 inches, Exquisitely machined diamond grinding wheels are designed by veteran craftsmen, nice addition to your toolkit.

Industrial grade 150 Grit diamond surface, which has a very uniform and compact layer of abrasive crystals so that it can be grinded quickly and efficiently, leaving surfaces cleaner and with longer service life than sandpaper and stone grinding wheels.

Multi-layer carbide body as you can see, this make grinding wheel has high hardness and heat resistance, so you don't have to worry about balancing and overheating while working. The one grind wheel to have when you're having more than one.

Tips for use, 700~1500 RPM on the drill is enough for most general purposes, release the maximum performance when use it on die grinder, recommended high speed is 7000~15000RPM, make sure that the set screws are tightly screwed and the rods are fixed when in use.