DEWALT DCN692B 20V Max XR Brushless Dual Speed Nailer Brushless Motor and engine design provides the power to drive 3-1/2" nails Sequential or bump operating modes Dual Speed optimizes the motor for different nail lenghts Accepts 30-34 degree paper tape nails, clipped and off set round head *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18