I've used a Zap-It EZ-Winder in the workshop for many years, but this Planet Waves drill bit peg winder can tackle a wider range of tuner button sizes - including bass tuners, which won't fit into the EZ-Winder socket.
• Attaches to any cordless screwdriverThe 1/4" hex stem fits your cordless screwdriver or socket driver. It's a real time-saver.
I use it with a 3.6v Bosch cordless screwdriver - just about the right power and speed.