The Tourna 650-ES Stringing Machine is a six-point computerized stringing machine that excels at stringing tennis, racquetball and squash racquets. This machine features CNC swivel clamps that offer easy maneuverability to clamp any string. A digital control panel with advanced stringing functions and programming offers convenient and consistent stringing. The diamond-coated rotary string gripper allows for fast and accurate one-handed tensioning. Enjoy quick and simple adjustments from the self-centering lever on the mounting stand. Built with a durable, all-metal construction, the Tourna 650-ES Stringing Machine makes stringing safe and easy! Patented Time Saving Down-Press Clamps and Gravity Assisted Release. Press the base lever down and it locks. To release, the clamps are gravity-assisted, or you can pull up on the base lever. Either way, it's lightning-fast and super easy to use. Clamps are CMC molded and compact so you can maneuver into the tiniest corners to clamp the string. These clamps are finely adjustable to clamp any string comfortably. The clamps are universal to both tennis and badminton. Extremely sensitive electronic tensioner with advanced microprocessor technology. Precision tension control from 10-90 lbs. (4.5 40.8 kgs) with 0.1 accuracy. Modular, removable tension unit for easy servicing. 6 selectable pull speeds. 4 levels of pre-stretch (5%, 10%, 15%, 20%). Knot function increases tension on tie-off pulls. Easy lbs/kgs conversion key. Calibration adjustable with electronic or manual calibrator. Convenient timer function. 6-point self-leveling quick mount system with load spreaders at tip and throat. Articulated side arms (single knob adjustable) for ultra-convenient and secure mounting. Adjustable large metal V-shaped side supports. Octagonal ergonomic, space saving turntable. Full 360 turntable rotation with brake. Oversized base and locking arm is easy to maneuver. Fingertip adjustable. Foot pedal included Sturdy height adjustable meta