Detail 01
Bass-specific peg cup
Sized for large bass tuner buttons. It will slip or not seat on smaller guitar machine heads.

Independent shopping perspective
Three-in-one string change tool for bass: peg winder, string cutter and bridge pin puller. Under $15 and does the whole job.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Sized for large bass tuner buttons. It will slip or not seat on smaller guitar machine heads.
Detail 02
Holds an edge through wound bass strings, which chew up soft cutters and leave frayed ends.
Detail 03
Keeps weight down and will not mar tuner buttons, but it is the part that fails if you crank against a stuck tuner.
Detail 04
Lifts acoustic bass bridge pins without prying against the bridge with pliers.
Detail 05
Shaped grip means less hand strain on the many turns a long bass string takes to seat.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
The peg cup is sized for bass tuner buttons, so it fits loosely or not at all on guitar machine heads. D'Addario makes a standard-size Pro-Winder for guitars.
Yes. The cutter is hardened steel, which is what heavy wound bass strings demand. Loosen the string first so it does not snap back when cut.
Acoustic bass guitars seat string ball ends under bridge pins. The notch lifts those pins out without gouging the bridge the way pliers or a screwdriver would.
No. It is a hand tool with a shaped grip, turned manually. There is no shaft or socket for a drill or powered driver.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.