Metabo HPT‑Hitachi 310009750 Armature Compl 120 V is an armature assembly designed to restore the core rotational component of compatible 120-volt Metabo HPT power tools. It works by converting incoming electrical current into mechanical torque via its windings and commutator, driving the motor’s rotor to spin. When installed correctly, this replacement part ensures reliable, smooth o... https://www.wholetoolbox.com/metabo-hpt-hitachi-310009750-armature-compl-120v