A versatile guitar tool, consisting of Allen keys, in inches (0.05"), inches with spherical head (1/8" and 3/16"), metric (1.5 - 2.5 and 3 mm) and metric with spherical head (4 mm). Other tools included are two Phillips screwdrivers (Philips 1 and 2) and a 2.5 mm slotted screwdriver.