With the fate of repetitive motion injury looming due to the need to drill 1,200 holes, [bitluni] took matters into his own hands and built this nifty DIY hole punch for light-gauge sheet metal.

"I would absolutely recommend a center punch before drilling any hole into metal," the expert said while speaking exclusively to House Digest. "The tool creates ... seam sheet metal to 2½-inch ...

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Printed in PLA, with 80% infill and 12 walls, the tool (right) failed at 5 tons. In a press, material such as sheet metal is formed into a shape by forcing the material around the tooling.