Similar to open source software, the open source hardware (OSHW) movement is seen as a technology driver which can enable developing economies to leapfrog their industries. While machine tools are a subset of OSHW, they have received relatively little academic attention compared to electronic OSHW. This study applies an explorative research approach and analyses open source designs for machine tools freely available on the internet. By coining, the term open source machine tools (OSMT), it determines their applicability in low resource contexts and identifies the potential of OSMTs in democratizing manufacturing technologies. OSMTs thereby encourage diversification, entrepreneurship, and inclusive industrial development, thus contributing to the implementation of Sustainable Development Goal no. 8 which aims to promote inclusive and sustainable economic growth. Specific areas for OSMT application in low-resource contexts and factors and barriers affecting their success are singled out.