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magic screwdriver / screwdriver

magic screwdriver
magic screwdriver

This is not just one screwdriver, this is a 3 in just 1 device. Many times we have to test different devices to match with the screw. There are two knobs beside its grip handle. When they are up, the screwdriver is the smallest size, when you push the knob number one down, the size of screwdriver changes to the second size, and when you push the second knob down it changes to the largest size of the screwdriver. And also I considered the ergonomic factors in the grip handle part, by using a polyurethane foam on the top of the screwdriver, when you grip the screwdriver, this foam absorbs the sweat of

University

islamic art university of tabriz

islamic art university of tabriz
urmia, Iran

maryam younesirad,
islamic art university of tabriz