Kluson Push-Fit Adapter Bushings XL (Set of 6) For New USA Fender Necks

Modern Fender guitar headstocks are generally machined with 10.5mm diameter peg holes for the machine heads. 

These are the correct adapter bushings for contemporary Fender necks that are bored out to slightly larger modern specs. These work as reducer bushings to enable you to install a vintage Kluson tuner on a modern headstock from Fender without having to plug and redrill the pegholes.