Power tool with compact outer-rotor motor assembly

A brushless direct-current (BLDC) motor comprising:

• a stator including a stator core having an aperture extending therethrough and a plurality of stator windings;
• and
• a rotor comprising a rotor core having a substantially cylindrical body, a plurality of permanent magnets secured to an inner surface of the rotor core, a rotor shaft extending through the stator, and a mold structure including:
• a radially body extending adjacent an axial end of the stator and coupled to the rotor shaft via a bushing, and a peripheral body formed around an outer surface and axial end surfaces of the rotor core and structurally securing the plurality of permanent magnets to the inner surface of the rotor core,
• wherein the rotor core comprises a plurality of teeth axially projecting from at least one of its axial end surfaces, and the mold structure is formed in engagement with the plurality of teeth to rotationally fix the rotor core relative thereto.