This is a A-B1GR03 Dressing Wheel Tool PN: B1GR03Main Description As Following : A-B1GR03 Dressing Wheel Tool P.N: B1GR03 Used to shape mower blade sharpening stones.Includes: Handle and cutter wheel Crossed From: 4237 ROTARY , 700-518 STENS , 700518 STENS Found in Section & Models : Sunbelt - Blades > Blade Tools & Accessories, (Miscellaneous) GRINDER, BLADE: SEVERAL, Sunbelt - Equipment > Grinders, (Miscellaneous) GRINDER, BLADE: SEVERAL Associated Items : A-B1GR06 Also This is An Aftermarket Product And : Used to shape mower blade sharpening stones. Includes: Handle and cutter wheel