From the country that invented reel mowers, this unique British designed sharpener accurately re-grinds sharp new cutting edges on most reel mowers, including imported models – whether: push/hand, electric, battery or gas powered. Sharpens: American, Great States, Scotts, True Cut, Silent Cut, Mascot, Task Force, Promo, Brill, Alco, Winchell, Husqvarna, Eason, Sun lawn, Gardena and others. Attach the sharpener to the cutter bar/bed knife while sharpening – every reel mower has one. Simply push the mower (or turn on the power) and the reel blades spin against the powerful abrasive and are automatically sharpened to the correct angle. The sharpener is then removed & the reel blades re-adjusted. 3 abrasives supplied to sharpen a blunt mower. Replacements available for many years use. Full instructions included.