Motor voltage: DC18V No-load rotation speed: about 9 500min-1 Amount of work per charge (approximate): Ironwork grinding about 10 minutes Φ13mm rebar cutting Approximately 30 pieces (using 1 mm thick cutting wheel) Body size: Approximately length 375 x width 120 x height 115 mm (including ironwork offset grindstone and battery pack) Weight: approx. 2.2 kg (ironwork offset grindstone, auxiliary handle, battery pack) include) Charging time: about 1.5 hours Use scratch Dirt Yes secure