Power tool having a hammer mechanism

A power tool comprising:

• a final output shaft configured to removably hold a tool accessory and defining a driving axis of the tool accessory;
• a motor including a motor shaft;
• a driving mechanism configured to perform at least a hammering operation of linearly reciprocally driving the tool accessory along the driving axis by using power from the motor;
• a housing accommodating the motor and the driving mechanism:
• a movable support at least partially supporting the final output shaft and the driving mechanism, the movable support being configured to be integrally movable relative to the housing in an axial direction of the driving axis;
• a biasing member configured to bias the movable support toward a front side in the axial direction, the front side being defined as one side in the axial direction in which the final output shaft is disposed while a rear side being defined as an opposite side in the axial direction in which the motor is disposed;
• a first guide shaft extending in the axial direction and configured to slidably guide movement of the movable support in the axial direction;
• at least one intermediate shaft extending in the axial direction and configured to rotate in response to rotation of the motor shaft and transmit the power of the motor to the driving mechanism;
• at least one bearing supporting an end portion of the at least one intermediate shaft, the end portion being located in the front side in the axial direction;
• and
• a single metal support disposed to be immovable relative to the housing and supporting the at least one bearing, the single metal support having a first hole for partially receiving the first guide shaft.