The Swiss Army Hand (GrabCAD Challenge)

grabcad

Designed for use by workmen, hobbyists, or anyone else, these tools can be interchanged based on the task at hand, such as woodwork or metalwork. The connector attaches the hand to the arm with a ratchet mechanism, allowing it to spin left and right or remain stationary. Tools lock into place like a Stanley knife's sprung clip for easy use, while the hand itself is crafted from 3mm punched aluminum to keep costs low and maintain simplicity.