The Draper 97922 Lawn Aerator/Scarifier with 5 adjustable working depths The Draper 97922 Lawn Aerator/Scarifier is powered by a 1800W motor with a 380mm working width and can operate at five adjustable working depths for the aerator and scarifier. Supplied with two quick-change cartridges: an eight-blade scarifying cartridge and a 20-tine aerator cartridge. Foldable handle for easy storage. Features: Safety switch Foldable handle 45L collection bag Quick-change cartridges Five Adjustable working depths (+6, -3, -6, -9 and -12mm) Comes with:  1x Lawn Aerator/Scarifier 1x 20 Tine Aerator Cartridge 1x 8 Blade Scarifier Cartridge Specifications:  Voltage: 240V Weight: 13.4kg Cable length: 10m Input output: 1800W Working speed: 380mm Tine count (aerator): 20 Collection capacity: 45L No load speed: 32500rpm Blade diameter (scarifier): 128mm Working depths: 5 (+6,-3,-6,-9 and -12mm)