GrooveTech managed to squeeze even more capability into this highly competent multi-tool. There’s still inch and metric hex wrenches, but with two sizes added. All truss rod sizes are ball-end. A 5/16” nut driver handles Gibson truss rods, and a ruler permits precise measurement. Also included are two Phillips screwdrivers plus a 2.5mm slotted screwdriver for vintage-style saddle screws. The one-piece body allows easy rotation and storage of components. All wrenches are pro-grade, using heat-treated S2 material with a polished chrome finish.