This listing is for a used Greenlee hydraulic knockout punch set, which includes the Greenlee 767 hand hydraulic pump, dies, draw studs, and related accessories. The set comes in a molded Greenlee hard plastic case with designated cutouts for all included components. The instruction and parts list envelope is included in the case. This is an incomplete set. 

The die set appears to include a range of knockout sizes for conduit fittings, likely spanning from 1/2 inch to 2 inches. The hydraulic pump is labeled Greenlee 767 and is connected to a flex hydraulic hose. Several draw studs and spacers are included, along with the compatible receiving and punching dies.

This set is suitable for electrical contractors and metalworking professionals who need to create clean, accurate holes in steel, aluminum, or other sheet metal for conduit installation. The case and components show signs of use, including surface wear and marks.