Guyker 6Pcs Guitar Locking String Tuning Pegs (3R + 3L) – 1:15 Vintage Deluxe Style Tuners Key Machine Heads Set with Keystone Knobs Replacement for Les Paul Style Electric, Folk or Acoustic Guitars

Always good quality and 15 to 1 ratio keeps tune, Locking wheel is easy to use

These work great. My guitar uses just 2 screws to secure the pegs. These should use four. I have two alternatives. Because the edges shaped the way they are, I can still secure them with two screws using the exising holes. Or, I could fill my existing holes with cocktail sticks and drill new holes. In practice I just use my existing 2 screws and holes and am very happy.

These came quickly and are nicely packaged. Complete with fixing screws. There is a small amount of backlash in the gears but perfectly OK, metal is as well finished (or better!) thank anything from the 1950's which these are styled after. Will certainly try different tuners from the same company for my next project. There are better ones out there, but at what cost? I think for most people making , repairing or upgrading a guitar these would be just the ticket.

I needed a replacement for the G-String tuner on my SG. It was so good and well designed that i replaced them all.

Perfect locking tuners nice retro style easy to use . Keeps tuning perfect

Great replacement on my Les Paul

6th Jul 2020 - This is an update following installing and using these for a while. The locking mechanism does not lock the string and is constantly unwinding. I can't recommend these to anyone as a cheap solution. I made the foolish mistake of ordering the traditional set for my 70's 335 which I now believe to be a mistake. My suggestion is to spend more and get a set from an established quality brand like Kluson, Grover or Gotoh. These Chinese machines are inferior and not value for money. These locking machines fit as an exact replacement for the Kluson tuners on my Traditional Les Paul. I have purchased these to try and improve tuning stability although it's probably more down to how the nut has been cut. The locking mechanism is very effective and holds the strings in place very well. However, unlike the Kluson's which are very nice machines, there are quality control issues that let the Guykers down. They have misaligned keystone shaped peg heads, pits in the metal, dirt in the pressings and lumps under the nickle finish. These are simple things to correct. With a little more attention to detail they could maybe live up to their claimed professional standard. They will be coming off again and replaced with some, admittedly much more pricey, Kluson locking tuners.

Not great quality, stiff to turn

This will not fit for guitar heads with 6mm hole. This will work for guitar with 10mm hole. As it is shown in the size diagram. Before ordering --- Check the size; Remove atleast one tuning key from your guitar, check the tuning peg hole size using Digital Caliper or a ruler. Along with this, it is also better to measure the dimensions, the screw hole distance etc.

La dureté des mécaniques est TRES irrégulière. Certaines tournes très bien (voir trop sensible), d'autres c'est quasiment impossible de faire tourner la mécanique. Grippées. Le mécanisme de verrouillage est très bien, les écrou de montage également.

Una de las clavijas originales se rompió y decidí reemplazarlas por éstas, la calidad del material a primera vista es descente, en cuanto a afinacion seguiré probando de momento no desafina demasiado, (también compré puente flotante de la misma marca y de momento parece estable).

Very nice upgrade. Recommend. They look great and tune as expected.

Guyker locking tuners fit my Epiphone ES 339 pro perfectly. The existing holes in the headstock we’re the size needed to fit these new tuners. And most importantly the spacing of the holes that allow you to screw down these new tuners to the rear of the headstock were perfect. It took no time at all to install these. I had read some reviews about these tuners being hard to turn and the locking screws not working properly. Mine seem to turn fine although I did turn both the tuner pegs and the locking screw many times to make sure there was no problems. I also put a very small amount of 3-in-1 oil on each to make sure they would work smoothly. I use the Billy Gibbons 7 gauge strings on my guitar and had no problems with the lockers holding on to the strings. Even the very thin high E string. I have had them on for several days now and have no problems holding the strings in tune. I had tried to get some higher end tuners but they are sold out almost everywhere. When I saw these for approximately $20, I thought what could I lose. The Kluson locking tuners are 19:1 ratio compared to these at 15:1 but that is still a little better then the stock Grover deluxe. So far I am very happy with this purchase.