Multi-function guitar maintenance tool set that saves time, protects hardware, and works across a range of stringed instruments. Key benefits Fast string changes: Swivel winders let you loosen and tighten strings quickly by winding and unwinding on tuning pegs (guitar tuning machines), reducing time and effort. Safe bridge pin removal: Built-in bridge pin puller securely extracts pins without damaging the bridge or pins. Versatile power option: Use the drill hex adapter to attach the winder to a drill or powered screwdriver for fast, low-effort pin removal and winding. Onboard tuning: Electric tuner works with a wide variety of instruments so you can tune accurately on the spot. Portable and practical: Combines multiple tools into a compact, easy-to-carry solution for home, rehearsal, or gig use. Features Swivel winders — Quickly loosen and tighten strings by unwinding and winding on tuning pegs/guitar tuning machines. Smooth rotation speeds up restringing and reduces hand strain. Bridge pin puller — Easy-to-use, multifunctional tool that doubles as a string winder and pin puller; designed to remove pins cleanly and reliably. Drill hex adapter — Mount the adapter to a drill or powered screwdriver to convert the winder into a fast pin remover or powered string winder for heavy-duty or batch jobs. Electric guitar tuner — Accurate, on-device tuner suitable for guitar, bass, mandolin, banjo, dobro, ukulele and other string instruments, including electric guitar. Practical use scenarios Quick gig change: Replace a broken string between sets, tune with the electric tuner, and get back onstage quickly. Routine restringing: Use the swivel winder for fast winding, the bridge pin puller for safe pin removal, and the drill adapter for the toughest pins. Multi-instrument sessions: Move between acoustic guitar, electric guitar, bass, ukulele or mandolin with one compact toolset and an on-board electric tuner to keep every instrument in tune. Compatibility and performance Designed to work with standard guitar tuning machines and bridge pins; the electric tuner supports a wide range of string instruments (guitar, bass, mandolin, banjo, dobro, ukulele, electric guitar). Combines manual control for precision with an option to attach a drill for speed when needed. Compact and easy to carry, suitable for home use, workshops, rehearsals, and live performance. Usage tips Use the manual swivel winder for controlled tuning and final tightening to avoid over-winding. Attach the drill hex adapter when you need to remove multiple pins quickly, and keep torque low to prevent damage. Calibrate and confirm tuning with the electric tuner after string changes for reliable pitch. This tool set brings together the functions you need for efficient string changes, safe bridge-pin removal, and quick, accurate tuning across your stringed instruments.