This Clever Device Will Help You Keep Your Garden Tools Sharp & Effective. Makes Easy Work Of Hoeing, Digging Or Edging Borders & Lawns.keep Your Tools Sharp & In Pristine Conditionquick & Easy To Use – Simply Attach To A Power Drillthe Aluminium Oxide Angled Wheel Produces A Sharp New Cutting Edge To The Correct Angle In Minutesalso Sharpens Rotary Lawn Mower Bladesuse On Spades, Hoes & Morerecommended By Amateur Gardening Magazine