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When we nail cutting, often hit the hand accidentally. I believe there will be a lot of people come across such a scene. The "Safety hammer" can easily solve this problem. It is made of a soft rubber material, usually hidden in the tail of the hammer. When we chisel nail, just like the figure as it will be installed at the end of the nail, we can easily hit the nail accurately, no longer have to worry about hit hands.
Shandong University of Science and Technology
Qingdao Shandong Province, China
wenqing li,
Shandong University of Science and Technology
linhao Yue,
Shandong University of Science and Technology
