This 3 per side set of Kluson tuning machines was used on vintage Gibson models such as the Les Paul, SG, 335 and others. Also used on the Epiphone Casino and current Epiphone production of Les Paul and SG 400 models. This model Kluson tuning machine is also a direct replacement for all current re-issue 50's and 60's Gibson production and other series that utilize a vintage style individual tuning machine. These are six individual tuners, 3 per side(not on a plate). All hardware including bushings and mounting screws are included in the set. Please note: If you are retro-fitting a vintage instrument that has been modified or putting this vintage style tuning machine on a modern instrument you may also need to purchase the part MB65LUS "adapter bushings" to convert a larger size peghole to vintage size to allow for proper fit and function. Available in both Nickel and Gold finishes Historically used on: 1956 - 1959 Gibson ES-175 1956 - 1959 Gibson Les Paul Standard 1959 Epiphone Crestwood Custom 1959 Epiphone Broadway 1958 - 1959 Gibson ES-335 1958 - 1959 Gibson EDS-1275 Double 12/6 double neck (3 sets needed) 1958 - 1959 Gibson EMS-1235 Double Mandolin 6 string guitar/mandolin double neck (2 sets needed) 1959 Gibson EB-6 1956 - 1959 Gibson J-160E 1952 - 1959 Gibson J-185Important Specs and Dimensions: String Post Overall length including cap = 1 inch String Through Hole ctr Height = 23/32 in. Comes with Kluson standard bushings. Uses Kluson Bushings MB65N US (Nickel) or MB65N US (Gold) Outside diameter of supplied push-fit bushings: 8.85mm. Inside diameter of supplied bushing = 1/4 inch or 6.48mmUses same footprint as original stamped steel Kluson tuners