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One+one screwdriver / screwdriver

One+one screwdriver
One+one screwdriver

There are separate drivers fit for existing straight-type screw and cross-type screw.
This product can use two kinds of screws using one driver without another act.
As for the straight-type, in putting a product in the groove, the front blade is hung about half, and the remaining tow blades support. So in using, it can prevent gliding.
As for cross-type screw, it can be available as the same way as existing one.

University

YEUNGNAM UNIVERSITY

YEUNGNAM UNIVERSITY
GYEONGSAN-SI GYOENGSANGBUK-DO, South Korea

Design

YEUNGNAM UNIVERSITY

YEUNGNAM UNIVERSITY
Ulsan, South Korea