How to turn a pocket into a power tool

The most basic pocketknife is not a pocketknife in the sense that it's made out of steel or hardwood.Instead, it's a thin piece of steel that's inserted into a socket, usually to hold a tool in place.A pocketknife was invented in the 17th century by a Swiss inventor named Georges Georges Dumas, who was a famous Swiss pocketknife expert.It wasn't

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