Rotobec 4552HD Grapple Saw. Custom-built, Saw and Grapple are Rotobec, rotator is a GRS16. Completely rebuilt, all new pins and bushings. One new cylinder and one has been rebuilt. Can include a valve kit for an 830B forwarder, valve kit can go for $3,000. From TimberPro they're $5,600. Contact Erik @ Red Pine Equipment 218-720-0933. Equipment is located in Northcentral USA.