The b bender and g bender are micro adjustable with a machine screws for intonation, and can be set to bend either a half, or full step up. They come strung up for an open E tuning (EBEG#BE), bending the second string up a full step takes you from a B to a C#, and bending up the 3rd string by a half step gives you an A. These two settings together give you the four chord, the relative minor, and an add4 chord.