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Combination wrench / Wrench

Combination wrench
Combination wrench

Combination-Wrench is the improvement of normal wrench. It turns wrenches in different sizes into one. With a handle, you can use it much more easily. Chose the size which matches and take it out, then insert the handle to fix the wrench. Just after these steps, wrenches in different sizes are available. It needs less space and less steel and still has the equal strength. The less materials needed, the more resource saved.

University

Zhejiang University

Zhejiang University
Hang zhou, China

Design

Zhejiang University

Zhejiang University
Hang zhou, China

Haiwei Ye, Yuanyi Ye, Shuai Shao, Kaifang Ding