SAPHUE 6R Guitar Locking Tuners 1:18 Lock String Tuning Key Pegs Machine Head with Hexagonal Handle Replacement for Electric Folk or Acoustic Guitars (Chrome)

I've used Musiclily 15:1 tuners on most of my guitars: they are very low cost, but I'm fed up with the high backlash and wobbly shafts. Decided to try out these 21:1 locking tuners: they are well made, the shafts have very little play in them so they sit stable in the head. They have a main gear made of brass, and I think this helps with the smoothness. Very little backlash detectable in use. I've had no problem with the locking screw snapping strings, I suspect that's a learning issue for some users over-tightening. The disadvantage in the robustness, better bearings surfaces and use of brass is that they are heavier than a standard tuner: the Musiclily weigh about 26g each, these weigh about 37g each. This is fine on the set I fitted on my 6 string, and I love them. The extra weight may not sound much but on my 12 string, it can make the difference between balance and head-diving. I've found that the locking wheel and shaft weigh about 5g, so if this becomes an issue, I can simply remove the wheel and use them as a good standard tuner without locks, weighing about 32g each.

Very nice quality for the price! Tight fitting, no loose parts, smooth tuners, lockers work great and holds tune very well.

Very nice smooth stable tuners very well worth the money

Good function for the price

These are well made and look great. I have an Epiphone Flying V Ebony (1958 Korina) and the base side fit like a glove, and I just used the old screw holes to install those three. The treble side I had to muscle in new screw holes for the three tuners. Took a little time but they came out great. I've never used tuners that locked the strings in before. Super handy and makes it so there isn't any tags of string poking out.

Changed out for ones on my SG style guitar and has stayed in tune ever since now while tuning. Work great and don’t break the bank.

I bought these to put in a custom build just to see what the fuss is about. Excellent design I'll admit and great quality for the price. If you are upgrading your guitar this is a definite way to go. I will use these in any of my other builds going forward. With that being said I won't upgrade any of my guitars in my own collection with these. Let the cool kids have the cool new shoes.

Tune o matic works great on my guitar