The Sledgehammer series is a new lineup of guitar/bass tuners that joins KORG's family of clip-on tuners. These tuners can be attached directly to your instrument for convenient tuning.

The Sledgehammer Pro provides ultra-precise tuning with an accuracy of +/- 0.1 cents, making it one of the most reliable clip-on tuners ever produced! The beautiful three dimensional display offers unparalleled visibility, allowing you to tune confidently in any situation. Its tubular body has a shuttle switch that's simple to use and allows you to easily operate the tuner with just one hand, even while performing. Offering both extreme accuracy and a unique, highly visible display, the Sledgehammer Pro is the ideal clip-on tuner for professional guitarists and bassists.

Easily operated shuttle switch

With its high-impact tubular design, the Sledgehammer Pro features a significant change in operability compared to previous clip-on tuners. Since a shuttle switch is provided on both sides, you can easily operate the tuner with one hand while playing a string with the other, just like you would when turning a tuning peg. By simply by turning the switch slightly up or down you can turn the power on/off, switch modes, and adjust the calibration smoothly with just one hand.

Ultra-high tuning accuracy 

Designed with the professional user in mind, Korg’s Sledgehammer Pro offers extremely accurate tuning with a detection range of ±0.1 cents, a level of precision that is uncommon of clip-on tuners. With the Sledgehammer Pro, players of all styles can now enjoy the same ultra-high precision offered in Korg’s flagship tuner, the Pitchblack Pro.

3D visual meter provides revolutionary visibility

The Sledgehammer Pro’s unique 3D visual meter display, originally developed for the Pitchblack Pro, provides unparalleled brightness making it easier to take advantage of the Sledgehammer Pro’s precise tuning.

Three meter display modes

Three types of display modes are offered: Regular, Strobe, and Half Strobe. Each mode can be easily selected according to the user’s preference. Strobe and Half Strobe mode reflect the extreme precision of the Sledgehammer Pro, making it more convenient to tune accurately.

A clip mechanism that provides strong holding power as well as flexibility

The clip is designed to make the connection with your instrument as efficient as possible, ensuring a firm grasp. The Sledgehammer Pro firmly adheres to a variety of guitar and bass headstocks. Even if you move around actively while performing, there's no danger that vibration or weight will cause the tuner to shift.

The double mechanism of a movable arm and ball joint simultaneously provide both durability and a free range of angle settings. Players have the flexibility to position the tuner wherever they need, and the confidence that it will stay in that position.

Calibration, auto power-off, and memory backup functions

A variety of functions are available to support your various tuning endeavors: the calibration function allows for a variety of concert tunings, the auto power-off function saves the battery if you forget to turn the unit off, and the memory backup function preserves your settings, even when the power is off.

• Scale: 12 note equal temperament
• Tuning Range: A0 (27.50 Hz)–C8 (4186 Hz), sine wave
• Detection Accuracy: +/- 0.1 cent
• Reference Pitch: A4 = 436–445 Hz (1 Hz steps)
• Dimensions (W x D x H):62 x 62 x 53 mm / 2.44” x 2.44” x 2.09”
• Weight: 28 g / 0.99 oz. (including battery)
• Battery Life: Approximately 14 hours (tuner continuously operating, A4 input)Accessories: CR2032 lithium battery (3V) x 1 (for verifying operation)