Nail Sets

Nail sets are used for setting the head of a nail beneath the surface of the wood. These are especially useful woodworking tools, as they keep the woodworker from having to drive the nail flush with their hammer, which would likely bruise or dent the stock, leaving ugly marks on their woodworking projects.

Source: http://woodworking.about.com/od/glossarytermsnq/g/NailSets.htm

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