Professional CATV, electrical, home theatre, satellite and security system ratcheting crimper frame with optional dies is perfect for fast, reliable connector installations. Full-cycle ratchet action assures a complete, precise crimp every cycle. Preset tension for optimum performance. Ratchet mechanism is designed to prevent the release of the connector prior to full compression. Safety crimp release helps eliminate rejected terminations due to incorrect positioning. Steel body with black-oxide finish for corrosion. Yellow and black grips enhance comfort, visibility and allow quick identification. Thumb-screws secure die-sets for quick, easy changes.