A very handy tack puller can be made of a round-head bolt. On one side of the head file a V-shaped notch and screw a wood handle on the threads. This makes a very powerful puller that will remove large tacks from hardwood easily.

Illustration from The Boy Mechanic, Book 2: 1000 Things for Boys to Do

The Shape of the Head Permits a Leverage Action That Lifts the Tack Easily

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