If you saw this orange thing hanging off a contractor's tool belt, you'd definitely be puzzled by it:
That's the Sumpokun, a gadget invented by a Japanese craftsman to speed the task of cutting floorboards. It allows the user to eliminate the marking step (if not the measuring), as well as obviating the need to make trips to the miter saw station. The inventor claims the time savings has led him to finish jobs early.
Here's how it works:
The Sumpokun sells for ¥27,400 (USD $190).
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