Power tool having an electronically commutated motor and double insulation

A method of making a power tool, the power tool including a housing having an electronically commutated motor disposed therein, the motor having a rotor and a stator, the rotor having permanent magnets, the stator having a lamination stack and windings wound therein, the rotor having a shaft, a sense magnet tray affixed to the shaft of the rotor in proximity to a sensor disposed in the housing, the sensor axially spaced from the sense magnet tray, the method comprising:

• placing the rotor with the sense magnet tray thereon in a mold and injection molding magnetic material into the sense magnet tray to form a sense magnet.