Designer Michael Young spent six years on what he called "a crazy science project." It was an attempt to create an intermediate link between the classic hammer and the nail gun. The device was supposed to combine the function of charging and feeding nails under impact, but at the same time it worked only due to muscle strength and was operated with one hand.
The designer reached his goal by 99%, he came up with, tested and brought the technology to a workable prototype. However, despite the serious interest, the implementation of a full-fledged product, in metal, and not only in the form of a plastic 3D model, did not take place. Zero demand from commercial structures that do not want to invest in a dubious product.
Young's self-loading hammer uses the same nail clips as construction nail guns. The hammer head is divided into three parts: the impact surface, the nail feeder and the ejection system for one of them. There is a safety button on the side of the hammer - if you turn the tool flat and knock, the upper nail from the clip goes into the ejection chamber. A light aimed blow is enough for it to fly out and stick into a tree, and then it can be hammered in the usual way. All manipulations are carried out with one hand.
Even a prototype made up of parts from a 3D printer can successfully recharge and drive nails. All moving parts are located far from the hand and the risk of injury is minimal. There is no need to talk about the cost of a self-loading hammer - Michael Young, due to lack of demand, abandoned the project and returned to racing cars. But videos with the work of his miracle tool attract interest on the Internet.