| 摘要 |
An auto hammer includes a housing having a grip, a head assembly arranged on one end of the housing, a motor mounted within the housing, a switch arranged on the housing for controlling the motor. The hardness of the material utilized for the head assembly of the auto hammer is lower than that of the housing. During operation, the material utilized for the head assembly makes the device feel more comfortable when held by hands. The hardness of the material utilized for the grip of the auto hammer is lower than that of the housing. During operation, the material utilized for the grip makes the device feel more comfortable when held by hands. The material utilized for two opposite sides of an upper portion of the housing is different from that of the remaining portion of the housing. When the auto hammer is positioned transversely on a working board, the hardness of the material utilized for the upper portion of the housing is lower than that of the material of the remaining portion of the housing, so as to protect the auto hammer and the working board.
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