Tuners - Grover, Rotomatic Roto-Grip locking, 3 per side

Grover
Pictured: Chrome
Pictured: Chrome
Pictured: Chrome
Pictured: Chrome
Pictured: Black Chrome
Pictured: Black Chrome
Pictured: Gold
Pictured: Gold
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Pictured: ChromePictured: ChromePictured: Black ChromePictured: Gold
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Tuners - Grover, Rotomatic Roto-Grip locking, 3 per side

Starting at: $64.95
Package of 6
Sold as a package of 6
In stock

The newest addition to the Grover family, these locking machine heads utilize the famous 18:1 Rotomatic® design with a “thumb screw” mechanism which locks the string into place. Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Perfect replacement for the most standard machine heads. Includes all mounting hardware.

Includes 3 treble and 3 bass.

RoHS Compliant
SKU:
P-GRV-502X
Item ID:
002155
Brand:
Grover
Part Numbers
ColorOur Part NumberUPC/EANGrover Part Number
Black ChromeP-GRV-502BC082562082960 502BC
ChromeP-GRV-502C082562082977 502BC
GoldP-GRV-502G082562082984 502BC
Product Measurements by Type
Body Depth8.4 mm
Body Length30 mm
Body Width41.8 mm
Gear Ratio1:18
Knob Depth8.4 mm
Knob Length23.85 mm
Knob Width17 mm
String Post Diameter6 mm
Packaging Information
Packaging DimensionsBlack Chrome versionP-GRV-502BC9 in. × 4.75 in. × 2.25 in.
Chrome versionP-GRV-502C9.3 in. × 4.8 in. × 1.9 in.
Gold versionP-GRV-502G9.3 in. × 4.8 in. × 1.9 in.
Weight (Packaging)Black Chrome versionP-GRV-502BC0.67 lbs.
Chrome versionP-GRV-502C0.67 lbs.
Gold versionP-GRV-502G0.7 lbs.
Product Measurements by Item
P-GRV-502C - Chrome versionBody Depth8.4 mm
Body Length30 mm
Body Width41.8 mm
Gear Ratio1:18
Knob Depth8.4 mm
Knob Length23.85 mm
Knob Width17 mm
String Post Diameter6 mm
P-GRV-502G - Gold versionBody Depth8.4 mm
Body Length30 mm
Body Width41.8 mm
Gear Ratio1:18
Knob Depth8.4 mm
Knob Length23.85 mm
Knob Width17 mm
String Post Diameter6 mm
P-GRV-502BC - Black Chrome versionBody Depth8.4 mm
Body Length30 mm
Body Width41.8 mm
Gear Ratio1:18
Knob Depth8.4 mm
Knob Length23.85 mm
Knob Width17 mm
String Post Diameter6 mm

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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on October 13th, 2016.
Matt H
October 13th, 2016
In order for you to get the most out of these tuners, you need to get one full wrap around the tuning post and then tighten the thumbscrew. This is how Grover designed these to work.
Anonymous
May 20th, 2020
It doesn't say wrap string before tightening. It says put string through the hole and leave enough slack in string for approx 1 wrap. Tighten thumb screw and then tune to pitch. So, in other words you tighten thumb screw first then wrap the slackened string to pitch.
Asked by Anonymous on October 14th, 2016.
Matt H
October 14th, 2016
Yes they should fit. The shaft of these tuners are 10mm in diameter. Please measure your existing tuners to insure a proper fit.
Asked by Anonymous on February 16th, 2017.
Matt H
February 16th, 2017
These tuners have a shaft diameter of 10mm and you will want to make sure your headstock is reamed for 10mm. Also, the setscrew that holds the tuner in place is perpendicular to the tuner key. You will want to make sure your tuners have the same orientation to prevent permanent modifications.
Asked by Anonymous on March 17th, 2017.
Matt H
March 17th, 2017
These tuners have a shaft diameter of 10mm and you will want to make sure your headstock is reamed for 10mm. Also, the setscrew that holds the tuner in place is perpendicular to the tuner key. You will want to make sure your tuners have the same orientation to prevent permanent modifications.
Asked by Anonymous on April 18th, 2017.
Matt H
April 18th, 2017
If the LPJ is reamed for a 10mm tuner shaft these should work. Also, if you are replacing Kluson style tuners you will have one unoccupied hole per tuner on the back of your headstock.
Asked by Anonymous on June 1st, 2017.
Matt H
June 1st, 2017
These tuners have a shaft diameter of 10mm and you will want to make sure your headstock is reamed for 10mm. Also, the setscrew that holds the tuner in place is perpendicular to the tuner key. You will want to make sure your tuners have the same orientation to prevent permanent modifications.

Product Reviews

4.80 out of 5 based on 5 reviews

Unapproved

- May 24th, 2020
5 out of 5

The locking tuners were easy to install and work great! Thanks again.

- September 10th, 2019
4 out of 5

Drop in replacement for cheap probably Gotohs on a 90's AS80 Ibanez project. Not as good as comparable Schallers but that's another $40+. They get the job done.

- December 7th, 2018
5 out of 5

Replaced my original Epi LP Custom Pro gold Grover tuners with these black Grover locking tuners. Love them. Really like the look on the guitar and ease of changing strings. These replacements fit perfectly and no issues. Highly recommend.

- May 15th, 2015
5 out of 5

This is my second set,these are a must for Les Paul's with non locking grovers!!!and amplified parts offer the best price period!!!

- October 18th, 2014
5 out of 5

These are great tuners, perfect for any guitar with stock Grovers. Upgrade in tuning stability and countless hours saved changing strings. My favorite from Grover, and the best price is right here.

- September 1st, 2013
5 out of 5

I ordered these for my les paul, and another set for my V. Easy to install, Easy to change strings, hold tuning well. Best tuners, and best price from amplified parts. Gold looks great on cherrybursts