mini drill skate sharpener

This is work in progress! Stuff needed mini drill or rototool. Piece of plywood or wood. M4 and M3 screws and nuts. 20x3mm grinding stone with mandrel. One 6mm mortar drill bit with carbide head. Fitting dimension should be adjusted for your needs or use different type of minidrill mounting brackets that fits your drill. Drill bit is shortened to 20mm. Drill bit is needed to trim grinding stone radius to make suitable groove to skates blade.