Workhorse Irons is a project from the association of internationally renowned tattoo artists such as Soba, Aaron Cain, Seth Ciferri, Cory Rogers, Chris Smith, Mike Pike, Marv Lerning, and Chris Quidgeon to offer other tattoo artists the best quality tattoo machines. Each tattoo machine is designed, built and adjusted by the artist himself if it bears the artist's name. The assortment includes spool machines as well as rotary machines.