Schaller's compact locking tuner, a common upgrade for improving tuning stability on PRS-style and other 3-per-side guitars.
7 guitars checked: 6 needs verification, 1 not compatible.
Illustration, photo coming soonWhere to buy
Amazon
We may earn a commission if you buy through links on this page. It doesn't change the price you pay. How we make money
Tuner hole size
10mm
ConfirmedGear ratio
18:1
ConfirmedConfirmed via direct PRS forum owner reports as fitting the SE without reaming, used specifically to address the SE's known tuning-stability complaints.
7 guitars checked: 6 needs verification, 1 not compatible.
PRS
Not confirmed. PRS fit their own Low Mass Locking tuners to the CE 24 and don't publish the hole size. Measure before buying.
PRS list PRS Low Mass Locking tuners on the 2023 CE 24 and don't publish the tuner hole size or mounting. Schaller's M6 locking sets need 10mm holes, and the mounting (screw or pins) depends on the exact version. Neither maker confirms the fit, so measure your tuner holes and check the screw or pin positions first.
PRS
Not confirmed. PRS don't publish this guitar's tuner hole size or screw positions, and Schaller don't list it. Measure before buying.
PRS list PRS-Designed tuners on this guitar but don't publish the hole size or mounting. Schaller's M6 locking sets need 10mm holes, and the mounting (screw or pins) depends on the exact version. Neither maker confirms the fit, so measure your tuner holes and check the screw or pin positions first.
PRS
Not confirmed. PRS don't publish this guitar's tuner hole size or screw positions, and Schaller don't list it. Measure before buying.
PRS list PRS-Designed tuners on the SE Custom 24 Lefty but don't publish the hole size or mounting. Schaller's M6 locking sets need 10mm holes, and the mounting (screw or pins) depends on the exact version. Neither maker confirms the fit, so measure your tuner holes and check the screw or pin positions first.
PRS
Not confirmed. PRS don't publish this guitar's tuner hole size or screw positions, and Schaller don't list it. Measure before buying.
PRS list PRS-Designed tuners on the SE DGT but don't publish the hole size or mounting. Schaller's M6 locking sets need 10mm holes, and the mounting (screw or pins) depends on the exact version. Neither maker confirms the fit, so measure your tuner holes and check the screw or pin positions first.
PRS
Not confirmed. PRS don't publish this guitar's tuner hole size or screw positions, and Schaller don't list it. Measure before buying.
PRS list PRS-Designed tuners on this guitar but don't publish the hole size or mounting. Schaller's M6 locking sets need 10mm holes, and the mounting (screw or pins) depends on the exact version. Neither maker confirms the fit, so measure your tuner holes and check the screw or pin positions first.
Yamaha
A locking upgrade in the right three-per-side layout, made for 10mm holes, the usual size on this guitar. Yamaha don't publish the tuner hole size or screw positions, so measure first.
Schaller's M6 locking tuners need a 10mm peghole. Yamaha list die-cast tuners on the RSS20 but not the model, hole size or screw position, so the fit is unconfirmed.
Music Man
Wrong layout for this guitar. This set is three tuners per side, but this guitar's headstock has four on one side and two on the other, so it won't fit.
Layout mismatch: this tuner set is three per side and this guitar's headstock is four on one side and two on the other, so the set cannot be fitted as sold regardless of peg hole size.
If you have fitted any of these to this Schaller M6 135 Locking Tuners, 3+3, tell us what you found and we'll update the data.
