ATS Tandem Alligator Squeezer incorporates two pistons to deliver twice the force of a standard squeezer at the same air pressure. It's lightweight, compact, and efficient design is modeled after the industry standard Chicago Pneumatic 0214-A squeezer. The parts are completely interchangeable, and it will accept any jaws and accessories compatible with the 0214-A squeezer. With enough force to squeeze up to 5/32" solid aluminum, or mild steel rivets, this riveter will easily fit most of your riveting needs without breaking your budget. Ats Pro Lifetime warranty