The DeWalt
DCD991P2 is part of the
Cordless Drills & Impact Drivers test program at
Consumer Reports. In our lab tests, Cordless Drills
models like the DCD991P2 are rated on multiple criteria, such as those
listed below.
Speed
How fast the drill can drill holes and drive screws
Power
Represents the amount of work produced by the drill from max RPM to stall. This is accomplished by increasing the applied torque on the dynamometer at a constant rate for a constant time period.
Run time
Reflects how much work the drill can perform per battery charge, as measured on a dynamometer.