Key Points: 1. For fret bends, pass a length of fret crank through the fret bender, bend it out and prepare it for installation on the fillet fretboard. Provides the perfect bend for the entire guitar on just enough wire in seconds. Precisely rounded frets make your fret processing fast, accurate and professional. 2. To straighten the frets, use the left 2 rollers to input the frets from the left, and you can control the straightening of the frets by adjusting the thumbwheel. 3. You can bend to 3 inch radius ba to straight 4. Adjustable thumbwheel to control the radius. 5. A very convenient fret bender tool for luthiers About Products For fret bends, by turning a section of the fret, it bends and is ready to fit on a rounded fretboard. Provides the perfect bend for the entire guitar on just enough wire in seconds. Precisely rounded frets make your fret processing fast, accurate and professional. To straighten the frets, use the 2 scroll wheels on the left, enter the frets from the left, and by adjusting the thumbwheel, you can control the straightening of the frets you want. You can bend to 3 inch radius ba straight With adjustable thumbwheel to control radius. Very handy string breaker tool describe: Material: Zinc Alloy Product size: 15x8cm / 5.9"x3.1" Product weight: 750g/26.5oz Pages include: 1 x fret bender