2 used m4 drivers 3 batterys and 2 chargers The Milwaukee 2101-20 M4 4V 1/4" Cordless Hex Screwdriver is a reliable and efficient power tool suitable for various tasks in the home and workshop. With a 1/4" chuck size and M4 battery technology, this screwdriver provides the necessary power for drilling and screwdriving. The set includes a charger and batteries, making it convenient for use without constantly needing to recharge. With a voltage of 4V, this Milwaukee screwdriver offers consistent and dependable performance for a wide range of applications.