MIECOO 13PCS Guitar Truss Rod Allen Wrench Set, Includes 7mm & 8mm Truss Rod Hex Box Wrenches and 4mm & 5mm Ball End Truss Rod W

2PCS Black Ball End Truss Rod Wrenches (4mm & 5mm): made of carbon steel & durable. Used to adjust the guitar neck straight, suitable for martin acoustic guitar or other guitar which couldn’t reach it with a regular hex wrench truss rod adjustment.   9PCS Black Guitar Allen Wrench Set: set of 9 including different size: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 1/20in, 1/8in, 3/16in. Various guitar allen wrench gauges are suitable for most guitar bass neck, bridge, nut locking, volume knob, bridge string block screw adjustment. 1.5mm for electric guitar & bass bridge. 2.0mm for volume knobs. 2.5mm for electric guitar bridge string block. 3.0mm for nut locking. 4.0mm & 5.0mm for most acoustic guitar truss rod screw gauges. 1/20 inch for some guitar bridge which made in Japan. 1/8 inch for some guitar bridge made in USA. 3/16 inch for some guitar bridge made in Mexican.   2PCS Silver Pocket Truss Rod Hex Box Wrenches (7mm & 8mm): made of high quality steel & durable. Fine workmanship, smooth surface with high glossiness. 7mm pocket truss rod hex box wrench fits for Taylor Guitar, and 8mm wrench fits for Gibson Guitar. Long handle length allows easier access to truss rod cavity and easily tighten or loosen the truss rod of your guitar.   Package Includes: 2 x Black Ball End Truss Rod Wrench (4mm & 5mm) 9 x Black Allen Wrench (1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 1/20in, 1/8in, 3/16in) 2 x Silver Pocket Truss Rod Hex Box Wrench (7mm & 8mm) 1 x Portable Storage Bag