Music Nomad MN227 The Octopus 8-in-1 Tool

Multi-tool for guitarists and bassists
Eight different tools in one, with lots of uses.
The reversible screwdriver has a tip for slotted screws at one end and Phillips screws at the other. The other end of the tool can be used to tighten nuts in five different sizes. These are 10 mm, 12 mm, 14 mm, 1/2“ and 7/16”, which are the most common sizes of nuts found on guitars, basses and amplifiers. The end where you insert the screwdriver also has a 1/2" nut driver that fits guitars where the tele jack is slightly recessed into the guitar. The handle is made of a very durable nylon material that will not scratch your instrument when used.
A very handy tool to carry in your guitar case instead of lugging around a small toolbox.

MusicNomad MN227:
Eight different tools in one
Fits several different nut sizes and screw models
Works with recessed tele jacks
Fits all the most common nut sizes on guitars, basses, and amplifiers
Made of durable nylon that won't leave ugly marks on your instrument
Approximately 15 cm long