A power tool is provided including a motor housing having a substantially-cylindrical main body having an open end and a rear end. A brushless DC motor is provided including a stator assembly received through the open end of the motor housing and secured within the main body of the motor housing. A motor control and power module disposed proximate the rear end of the motor housing includes a printed circuit board (PCB) on which power switch and a controller are mounted. A mounting bracket is secured to the motor housing at the rear end to support the module such that the PCB is substantially parallel to the rear end. The mounting bracket includes a mating portion projecting axially to come to contact with the motor housing around the rear end to structurally support the mounting bracket with respect to the motor housing.