I love these tuners. They look cool, they hold tune well. I would not upgrade to these for any guitar that doesn't already have them. Use these for repair/replacement only if you have a guitar that comes with these machines (Eric Clapton, 50s reissue strats). American standards, deluxe and mexican strats all use a different mounting method and have a different peg hole size which is why they provide you with those bushings. If you use these to replace the stock Ping tuners you must be able to drill and tap the machine screw mounting holes. The bushings do not set tight in the existing tuning machine peg hole. I used a drop of super glue to hold the bushings in place to the head. I did use these to make a black MN MIM strat look more like Eric's blackie, so it is not impossible to use them, just know you will have to drill new screw holes and tap them for mounting. Be very careful to not drill all the way through the head and with brass mounting screws. There are no extra screws. It is very easy to bur the brass phillip screw heads beyond use. After your holes are drilled use a pick guard screw to thread hole, then use the provided mounting screw for the tuning machine. I drilled and tapped holes to install one machine at a time to more easily manage alignment of machines from one to the other. After I was done it looked factory issue and worked the same. I put a drop of oil between the peg and bushing before stringing to ease peg binding against the bushing.
i have been looking at these only to replace the original "gold plated" hardware on a rare custom MIJ 90's tele that have the typical oxidation. going to chrome just for the look to match the white and pearl inlay on the guitar.( will keep and save the gold for collecter value)i would like to make a comment to a previous review however. all tele's that i know of at least before the 1970's all were top loaded "definatly vintage stuff" which i actually prefer to the current style i have on my american standards. very nice piece this is.
i bought my new 52' tele not 2 weeks ago, and yesterday i decided to change the strings. these tuners are alot different than the ones any strat or any non-vintage fender instrument. it involves sticking the string in the top of the tuner, and then winding it around acouple times. this is much more difficult than the standard, stock fender tuners. beside that, my tele stayed in tune great, i only tuned it twice during the two weeks. just consider that these tuners have some getting use to.
When buying products you look for style and quality. These machine heads have both. Nice turning radius and the look to keep your Strat or Tele looking vintage and authentic. The specs on these machine heads will keep even the most discrimatory player or collector.