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Magical Screwdriver / Magical Screwdriver

Magical Screwdriver
Magical Screwdriver

It is designed to unscrewdamaged screws. Rubber pad is set at the top of the screwdriver.When encounteringdamagedscrews,you can remove the padand pad it on the screw and then you canunscrew.The problem can be easily solvedby using the friction between rubber pad and screw as well as screwdriver.

University

nanhang jincheng college

nanhang jincheng college
Nanjing, China

Yumin Guo,
Nanhang Jincheng College

Jiarong She,
Nanhang Jincheng College

Xinyan Wang,
Nanhang Jincheng College