This is a super tuner recognized as such around the world.
They use a 1:21 gear ratio: a world first. The SG510 series has evolved through improvement without compromise at any stage and come equipped with a considerable application of high-technology as standard. With the improvement of precision fitting gears, marvelous touch on playing—they have gained a considerable reputation and are trusted as the No.1 machine head by many musicians all over the world.