From the Manufacturer
The Greenlee Quick Draw punch drivers are self-contained hydraulic tools. These punch drivers, when used with Greenlee punches, dies, and draw studs, form a complete system for punching holes of various shapes and sizes through mild steel, aluminum, fiberglass, and plastic. Slug-Splitter punches, dies, and studs are available for punching all of these materials as well as stainless steel. In addition, the 7704SB / 7706SB punch driver has a flexible body that allows hole punching at a variety of angles. The handle and release mechanisms rotate nearly 360 Degree for convenient actuation.
Develops 8 tons of hydraulic force for easy punching. Quick Draw 90s right angle driver head rotates over 180 degrees for maximum flexibility in tight working areas.