Concrete Vibrator Kit Voltage 18V DC Shaft Length 4 ft Head Diameter 1 in Radius of Vibration 4 in Vibrations per Minute 12 500 vpm Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Battery Charger Battery Capacity 6.0Ah Head Length 15 in Tool Length 57 in Tool Weight 11.1 lb Shaft Connection Type Threaded Battery Model Number 48-11-1865 Battery Series M18 Charger Included Yes Charger Model Number 48-59-1808 Concrete Vibrator Type Handheld Head Material Steel