Forget lugging around screwdrivers, nut drivers, wrenches and Allen Keys or multiple bit sets in bulky cases, The Octopus 17 �n 1 Tech Tool can handle every job! MusicNomad�s patent pending, innovative design is the perfect tool for tightening or loosening screws and hex nuts on vital gear components like bridges, saddles, locking nuts, output jacks, control pots, tuning machine bushings and more. Just say no to metal....tools that is! Our ergonomic handle is made from strong ballistic nylon material that won�t scratch or ding your hardware and is engineered for the most popular Hex Wrench sizes : 10mm, 12mm, 14mm, 1/2� (2) & 7/16�. Our unique handle also holds the universal adapter giving you even more versatility. The metal universal adapter features a 7th 1/4� Hex Wrench for tightening or loosening hex nuts, in addition�it securely holds our 10pc screwdriver bit set. Our screwdriver bit set features Phillips & flat head bits along with 8 Allen Key bits (.050", 1/16", 3/32", 1.5mm, 2.0mm, 2.5mm ,3.0mm, 4.0mm) for nearly any kind of screw you may find on your gear. It tackles every job including precision adjustments to pieces like tremolo systems. Take out the universal adapter to utilize our 1/2� narrow profile Hex Wrench for tightening tough to reach sunken pots & tele cups. This little tool delivers big results and is a must have for every instrument case.