DCF840: HIGH-PERFORMANCE BRUSHLESS MOTOR: Drive large-diameter screws with 1,700 in-lbs of torque and 3,200-rpm
DCF840: MANEUVER WITH EASE: Compact design for mobility and access to difficult-to-reach spots
DCF840: PRO-LEVEL CONTROL and precision with variable speed trigger
DCF840: BRIGHTEN DARK WORK AREAS: Integrated 3-LED work light designed to enhance visibility in dimly lit spaces
DCF840: TACKLE HEAVY-DUTY WORK with 50% more power and a 25% more compact battery
DCBP034: 50% MORE POWER in a 25% more compact battery
DCBP034: DESIGNED TO RESIST WEAR-AND-TEAR: Durable, overmolded base provides impact resistance
DCBP034: LONG-LASTING: Battery provides 2X Lifetime
Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18