The Kluson® Supreme series tuning machines for electric guitars have an 18:1 gear ratio in the traditional stamped steel housing. This particular set is designed for instruments using a 6-in-line (not plate mounted) tuning machine set, and features an upgraded gear ratio compared to the original machines.
 
The gear covering bears the series name SUPREME in place of the original DELUXE moniker, but this is the only hint to what lies hidden under the dust cover. Using all vintage specs, these tuning machines will drop right into your instrument using the original tuner holes with no modifications. This is a complete set and comes with 6 bass side tuning machines with metal oval buttons and all hardware needed for installation.