Guyker 6Pcs Guitar Locking Tuners (3L + 3R Handed) – 1:21 Lock String Sealed Tuning Key Pegs Machine Heads with Keystone Knob Replacement for LP, SG, TL Style Electric or Acoustic Guitars – Chrome

they work, they look good, and i fitted them to a leo james LP copy, just the ticket and super easy to install the only mod i had to make on my guitar was drilling 6 tiny little new holes to take the philips screws supplied because the screw holes did not match in the place my originals were in, but that's ok..new holes and a bit of wood filler and i was good to go, the machine heads work great and now my guitar stays in tune using the tremolo system also from gyker. very happy. I only bought these because Brain May from Queen said he uses a similar locking system on his hand made guitar, and so that inspired me to try it on mine along with his signature gold plated strings, the effects were pleasing to my ear so i'm sticking with it.

Very good price and great quality, I think they are 1-21 which is pretty good

Installed on an Epiphone SG Muse.Smooth and very progressive with little slack or snatch. Beautifully finished in chrome.Great upgrade.Heavier than non locking tuners but that is to be expected unless you want to spend a £100++ on Hipshot tuners?Work out at £5 each for six and are brilliant value at that price.I can't fault them.QC? Maybe an issue but the set I received were perfect.Highly recommend these as an upgrade for Epiphones and there's no need to drill holes either - at least not on my Epi model.

They are not best generally. They are not same quality 4 of them work good and 2 had some issues in specific positions. I have in my squire 6 in line set and they are brilliant but not 3+3 set. I should send it back but I fit them and noticed problem to late unfortunately... I will swap them for proper gotoh soon🤷

Great value

I bought these to put on my Gibson 335. I had to ream out the holes a little to fit, but that was easy enough. They are superb tuners.

Waited 2 weeks for these and was so excited, arrived and they looked good. Put them on my guitar, and discovered they are complete rubbish. They are so thinly plated that even the strings scratch the gold finish clean off to the metal. They also have a lot of back play in the tuner so if you tune past the note the machine play is so much you have to wind off almost a full 1/2turn to retune. Avoid, what a waste of money. I should have saved up and bought a better brand.

Looks good but are not doing what are supposed to do, they won't stay in tune, I've tried adding vaseline to the rotation gear and even string it like a non locking tuner but still goes half a tone down within 1 song, waste of money