For many years Schaller manufactured the tuners used on Fender American Standard Stratocasters, Telecasters and other guitars, now they are available from Schaller directly to the same specifications allowing drop in replacement. This set of 6 in line right handed Original F-Series tuners have two mounting pins which fit in to holes in the back of the headstock to stop the tuner rotating 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.