The flail wheel is very sharp and can remove grass from lawns, gardens and driveways and is very good for cutting heavier surfaces Use a disc to remove rust from metal. < p>Lawn Mower Gear Blade Nut Fastening Kit, used to connect saw blade, trimmer head and lawn mower Install a straight pruning machine describe: Material : steel wire and aluminum alloy Diameter: 15cm Hole diameter: 25.4mm Package: 15 x 15 x 6cm Package Includes: 1 x Head Trimmer 1 x M10 x 1.25 Left Thread Nut 1 x Knife Board 1 x Knife < p>Note: 1. Be sure to hold the angle grinder firmly 2. Use appropriate security measures getveryrich