Power Tool

A power tool comprising:

• a motor configured to drive an end bit;
• a fan configured to be driven by the motor and defining an axis and a radial direction;
• and
• a housing accommodating the motor and the fan therein, the housing including:
• a peripheral wall having a ventilation hole formed therein, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface whose length in the radial direction is coincident with a thickness of the peripheral wall;
• and
• a grid configured to partly cover the ventilation hole and including at least one elongated portion extending in an longitudinal direction perpendicular to the radial direction, characterized in that:
• a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan, if a plurality of elongated portions are provided, the one elongated portion being an elongated portion closest to the circumferential surface among the plurality of elongated portions, or if a single elongated portion is provided, the one elongated portion being the single elongated portion.