The Martin Guitars SC Service Kit Sure Align Neck includes everything you need to adjust and maintain the innovative Sure Align Neck System. This comprehensive toolkit features eight elevation plates for various neck setups, two precision feeler gauges (0.003" and 0.005" thickness) and a string action gauge for accurate string height measurement. It also comes with a torque wrench and an angled 4mm Allen wrench for precise truss rod adjustments. Designed specifically for Martin's SC models, this kit ensures optimal playability and setup every time.