Hand-controlled circular saw
A circular saw includes a universal arm mounted to a rear end of a base member of the circular saw. A housing with a saw blade is pivotally connected to the universal arm. A drive device is longitudinally mounted to the housing for driving the saw blade and includes a casing secured on the housing. A motor is securely received in the casing and radially corresponding to the saw blade along a moving direction of the saw blade. A worm is longitudinally secured on a free end of the shaft extending from the motor. A worm gear is laterally rotatably mounted to the casing and engaged to the worm. An endless belt is mounted and surrounding a first belt wheel extending from the saw blade and the second belt wheel extending from the worm gear for driving the saw blade when the motor is operated.
Y B Y Y B Y Y B
Y10T B23D Y10T Y10T B27B Y10T Y10T B23D
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Chin-Chin
Chang