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An original screwdriver allows you to tighten a screw by turning the driver clockwise and loosen it by turning counterclockwise, which is very inconvenient.
Therefore, to improve this situation, we have designed [Easy Spin] which allows the driver head to turn by itself when giving pressure on its handle.
Wu Mei Ru,
Shiu Bo Zong,
National Cheng Kung University
Wang Ching Lin,
Far East University