High-power battery-operated power tool

A power tool comprising:

• a housing including a handle portion and a motor housing portion;
• a power supply interface arranged on an end of the handle portion opposite the motor housing portion to receive a removable battery pack;
• a brushless direct current (BLDC) motor disposed within the motor housing portion and including a rotor and a stator having at least three stator windings corresponding to at least three phases of the motor, the rotor being moveable by the stator when the stator windings are appropriately energized within the corresponding phases;
• a multi-phase inverter bridge circuit disposed between the power supply interface and the motor;
• and
• a controller configured to output a plurality of drive signals to the inverter bridge circuit to control flow of current from the battery pack to the motor, wherein each drive signal is activated within each corresponding phase of the motor within a conduction band, wherein the controller is configured to control a length of the conduction band at a variable value within a first torque range below a torque threshold and at a substantially constant value within a second torque range above the torque threshold, wherein the torque threshold is greater than approximately 1 Newton-meters and the motor produces a maximum power output of at least approximately 1250 watts at the torque of approximately 1 Newton-meters.