Pin puller - Loosen and tighten strings by unwinding and winding at the tuning pegs; also acts as a convenient peg winder to speed up string changes. Bridge pin puller - Easy-to-use and multi-functional tool that can be used as a string winder, pin puller, drill bit adapter, and peg winder for versatile maintenance. Peg winder - Fits guitar, bass, mandolin, banjo, dobro, ukulele and other string instruments; designed to simplify winding and has pin remover capability for quick setup. Pin remover - Assemble the drill hexagonal adaptor with a power drill or screwdriver to quickly remove pegs or pins, enabling faster restringing and repairs. Use scenarios - Home guitar setup: use the pin puller to remove old strings, the peg winder to install new strings, and the peg winder/pin remover as needed for rapid changes. - Instrument maintenance on mandolins, banjos, or dobros: use the bridge pin puller to lift bridge pins, then employ the peg winder to wind strings and the pin remover for fast pin removal. - Workshop speed-ups: connect the drill hex adaptor to a power drill to quickly remove pegs or pins, then proceed with winding and pin replacement as required.