Performance Machine Tools, LLC was founded in 1979 by Bob Kroha. We offer New & Used Metalworking Machinery - CNC & Toolroom. We operate from our 10,000 sq ft Northern California office & showroom. Our specialties include late model cnc, tool room equipment and related accessories. mill, lathes, vmc's, turning centers, surface grinders, saws, and more. brands such as: haas, fadal, matsuura, mori seiki, mighty viper, femco, chevalier, acra, makino, okuma, mazak, etc.. Call Rob or Bob kroha today for more information. We are proud members of the MDNA & AMEA. Bob Kroha is a certified Appraiser.