Brushless Motor Technology delivers more runtime, power, and longer motor life Drives 2 in. to 3-1/2 in. Clipped head framing nails into engineered lumber Drives 3 nails per second with no gas cartridges and zero ramp-up time 750 nails per charge when using a 4.0 Ah battery Selectable mode switch allows contact actuation or single sequential actuation mode Tool-free depth of drive ensures accurate depth control to protect work surface from overdriving Integrated rafter hook for additional storage options No mar tip included to keep work surface free of tool marks 100% Compatible: Works with all RIDGID 18V Batteries, Tools, and Chargers Item in this listing is in good condition and good working order. One Ridgid brand 18v 4.0Ah battery is included.