MIECOO 12PCS Guitar Luthier Repair Tool Kit, Includes 11PCS Guitar Bass Neck Bridge Nut Screw Adjustment Truss Rod Allen Wrenches and Guitar String Action Ruler Gauge for Guitar & Bass

【GUITAR LUTHIER REPAIR TOOL KIT INCLUDES】9 x Allen Wrench; 2 x Ball End Truss Rod Wrench (4mm & 5mm); 1 x Guitar String Action Ruler Gauge; 1 x Portable Storage Bag. Suitable for guitar, bass, mandolin, banjo and more. Perfect gift idea for guitar lovers, beginners, luthiers. 【9PCS ALLEN WRENCHES】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. 【4MM & 5MM BALL END TRUSS ROD WRENCHES】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. 【GUITAR STRING ACTION RULER GAUGE】made of stainless steel & pocket-sized. Used to measure string height, bridge saddle height, pickup polepiece height, nut height, saddle slot depth, fret slot depth, etc. Also printed with a conversion chart of string action at 12th fret. 【GUITAR ESSENTIAL REPAIR TOOL KIT】a set of simple and practical guitar repair tool kit. Guitar allen wrench set is used to adjust the hexagonal screws, such as neck, bridge, nut locking, volume knob, bridge string block screw adjustment, guitar neck truss rod adjustment, etc.