Dremel 26150953JA 6.4mm x 15.9mm grinding stone with 3.2mm shank

Industrial "oxide" abrasive for extended usage.
Ideal for sharpening, deburring and general purpose grinding and working of most materials.
This accessory is designed for conic surfaces.
Small grinding stone for use on metals, castings, welded joints, rivets and rust.
Ideal for shaping, smoothing, sharpening, deburring and general purpose grinding.
Use the dressing stone for cleaning the surface of your grinding stone and for restoring contours of its original shape.
The dressing stone can also be used to create a grinding stone with just the right shape for that special job.
Pack of 3.