Vintage Greenlee No. 735 conduit knockout punch set with leather case

Greenlee Tool Company, founded in 1862 in Rockford, Illinois, became a leading manufacturer of professional-grade tools for electricians and utility workers. The No. 735 knockout punch set was designed for creating precise holes in electrical conduit and metal boxes, essential for running electrical wiring in commercial and residential construction. These sets were manufactured primarily in the mid-to-late 20th century and became industry standards for their durability and precision. Vintage Greenlee tools are highly valued by professional tradespeople, tool collectors, and industrial history enthusiasts who appreciate American-made craftsmanship and functional design. The leather carrying case and robust construction exemplify the quality standards of mid-century American manufacturing. Collectors prize these sets for their historical significance in the evolution of electrical work and their representation of an era when tools were built to last generations.