Hikoki M3612DA 36V Multivolt Router 5AH BatteryPower - 36VBattery capacity - 2.5AhBattery Included - YesBattery Technology - Lithium-Ion (Li-Ion)Brushless Motor - YesNumber of Batteries - 1Power - Cordless ElectricPower Source - BatteryCollet chuck capacity - 6, 8 and 12mmCollet Size - 1/2inchMain body stroke - 50mmNo load speed - 11,000 - 25,000 min-?