| Precision 20 to 1 gear ratio provides fast and accurate tuning adjustments Reversible tuning key easily converts for treble or bass side placement Fits standard 1/2 inch post diameter with 11/16 inch headstock mounting holes Stainless steel tuning key resists rust and tarnishing from regular use High durability construction protects against wear during long gigging use | Brilliant chrome finish adds a classic look to your bass guitar hardware Sold individually so you can build exact custom tuner configurations easily Engineered and manufactured in the USA for reliable performance and quality Lightweight aircraft grade aluminum housing eliminates headstock neck dive Compact footprint installs easily onto small or modern bass guitar headstocks |