A power tool comprising: a gear case; a motor case connected to a rear end of the gear case; a handle portion attached to a rear end of the motor case; a motor housed inside the motor case, the motor having a stator, a rotor rotationally arranged inside the stator, and a fan in rotational connection with the rotor; at least one air intake arranged on at least one of the motor case or the handle portion near the rear end of the motor case; and a power module including a plurality of power switches for driving the motor and a heat sink, the power module being housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor; wherein the at least one air intake comprises a plurality of axial walls therein defining a plurality of intake conduits arranged to receive and direct air from outside the power tool into the motor case; characterized by: the gear case having a spindle; wherein the intake conduits are further defined by an arcuate baffle having a generally angular orientation, the baffle generating a path of airflow outside the power tool that is considerably different from a path of particulate stream associated with a workpiece engaged by the power tool during power tool operation; wherein the arcuate baffle angularly extends inwards towards the motor from a rear edge of the air intake at an angle with respect to an axis of the power tool, a distal end of the arcuate baffle together with a front edge of the air intake defining radial inlets separated by the axial walls; and wherein, during the operation of the tool, the arcuate shape and angular orientation of the baffle effectively directs incoming air in the direction of the motor in order to create an air flow path outside of the air intakes of the power tool that is considerably different from the path of the particulate stream caused by the grinding operation. a gear case; a motor case connected to a rear end of the gear case; a handle portion attached to a rear end of the motor case; a motor housed inside the motor case, the motor having a stator, a rotor rotationally arranged inside the stator, and a fan in rotational connection with the rotor; at least one air intake arranged on at least one of the motor case or the handle portion near the rear end of the motor case; and a power module including a plurality of power switches for driving the motor and a heat sink, the power module being housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor; wherein the at least one air intake comprises a plurality of axial walls therein defining a plurality of intake conduits arranged to receive and direct air from outside the power tool into the motor case; characterized by: the gear case having a spindle; wherein the intake conduits are further defined by an arcuate baffle having a generally angular orientation, the baffle generating a path of airflow outside the power tool that is considerably different from a path of particulate stream associated with a workpiece engaged by the power tool during power tool operation; wherein the arcuate baffle angularly extends inwards towards the motor from a rear edge of the air intake at an angle with respect to an axis of the power tool, a distal end of the arcuate baffle together with a front edge of the air intake defining radial inlets separated by the axial walls; and wherein, during the operation of the tool, the arcuate shape and angular orientation of the baffle effectively directs incoming air in the direction of the motor in order to create an air flow path outside of the air intakes of the power tool that is considerably different from the path of the particulate stream caused by the grinding operation. the gear case having a spindle; wherein the intake conduits are further defined by an arcuate baffle having a generally angular orientation, the baffle generating a path of airflow outside the power tool that is considerably different from a path of particulate stream associated with a workpiece engaged by the power tool during power tool operation; wherein the arcuate baffle angularly extends inwards towards the motor from a rear edge of the air intake at an angle with respect to an axis of the power tool, a distal end of the arcuate baffle together with a front edge of the air intake defining radial inlets separated by the axial walls; and wherein, during the operation of the tool, the arcuate shape and angular orientation of the baffle effectively directs incoming air in the direction of the motor in order to create an air flow path outside of the air intakes of the power tool that is considerably different from the path of the particulate stream caused by the grinding operation.