| 摘要 |
PURPOSE: A safe hammer is provided to prevent a nail from bending by accurately driving the nail as a guide supports an object. CONSTITUTION: A safe hammer comprises a handle(10), a head unit(20), a spring(30), a guide(40), and a hitting unit(50). The head unit is vertically attached to one side of the handle. The spring is installed inside the head unit. The guide is installed on one side of the spring. The hitting unit is installed inside the guide.
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