• Easily mounts to standard 1 5/8" x 1 5/8" Unistrut (Unistrut not included) • Serves up to 800 RPM • Repeat and infinite turn functions • Ability to store 64 individual memory files • Twists bowstrings evenly from both ends to ensure an even twist rate throughout the bowstring • Uses air cylinder to ensure bowstring stays at a constant tension when serving or twisting • Can tension up to 375# with the use of 150 psi air compressor. (Air compressor not included) • Quick release air valve for quick & easy on/off application of air pressure • Laser engraved marks on base plates for quick measuring of strings • Can also serve as a jig for laying up bowstrings • Includes (1) Aluminum Jig Spool (#AJS) • Can wind bulk serving material onto jig spools with the optional Bobbin Attachment (#SS-BA) • Optional Foot Pedal (#SS-FP) available