Changing strings just got a whole lot easier, safer and more FUN!. MusicNomad�s�innovative GRIP Bit peg winder attaches to any cordless power drill or power screwdriver.� Our innovative GRIP Technology smoothly and silently slips over your tuning pegs for a scratch free & clank free operation compared to traditional plastic peg winders. Our contoured design fits virtually all tuning pegs both big and small. It�s perfect for electric and acoustic guitar, bass, banjo, mandolin, ukulele and orchestral strings. Using the highest quality materials including a carbon steel shaft. So don�t lose it or loan it, you�ll look forward to the next time you change your strings. That�s MusicNomad quality � raising the bar in equipment care.