The Schaller M6 range of tuners are the world's bestselling and set the standard for fully enclosed machine heads. This set of 3 x 3 tuners have the attachment screw offset downwards which results in a compact tuner size and they feature a 1:18 gear ratio for accurate tuning. The enclosed gears feature Schaller's Velvet-Tec and LX6-Lube technologies to ensure the gears mesh and turn smoothly and precisely, backlash is minimised and it also adds durability.