Changing strings just got a lot easier, safer, and more fun. This patent pending GRIP Bit peg winder attaches to any cordless power drill or power screwdriver. The rubber-lined head smoothly and silently slips over your tuning pegs for scratch-free and clank-free operation, and the carbon steel shaft won’t wear out anytime soon. Fits virtually all tuning pegs both big and small, and the narrow profile doesn’t hit adjacent tuning pegs especially important on 12-string and electric guitars. Perfect for guitar, bass, banjo, mandolin, ukulele and orchestral instruments.