Push-Fit Adapter Bushings XL (Set of 6) For Modern Necks

Modern and contemporary guitar necks such as on Fender guitar headstocks are generally machined with 10.5mm diameter peg holes for the machine heads.

These are quality adapter bushings where the headstock is bored out to slightly larger modern specs. These work as reducer bushings to enable you to install vintage tuners such as Kluson or Gotoh where the tuner peg is 1/4" or 6.48mm, without having to plug and redrill the pegholes.

They are push-fit.  Do not force any adapters into the pegholes as you may risk damaging your guitar.  They should be a firm fit.