If you’re looking for a comprehensive guitar maintenance and repair tool kit, Music Nomad’s Premium Guitar Tech Screwdriver and Wrench Set is a great choice. It’s designed specifically for guitars and comes with 18 screwdriver bits, 7 hex wrench sizes, a premium spanner wrench and a large, attachable handle that is engineered for most common hex wrench sizes. It works well for pretty much any adjustment to your guitar hardware, including tuners, jacks, pots, bridges, pickups, tailpieces, string guides, pickguards, tremolo arms and more — even in hard-to-reach places like nuts in sunken pots and recessed Tele jack cups.