Tuners - Grover, Rotomatic Roto-Grip locking, 3 per side
Pictured: Chrome
Pictured: Chrome
Pictured: Black Chrome
Pictured: Gold
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Starting at: $79.95
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.
SKU:
P-GRV-502X
Item ID:
002155
Brand:
Grover
Button Finish:
Button Shape:
Gear Ratio:
Locking:
Mounting Type:
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Tuning Machines:
Type:
RoHS Compliant
| Color | Our Part Number | UPC/EAN | Grover Part Number |
|---|---|---|---|
| Black Chrome | P-GRV-502BC | 082562082960 | 502BC |
| Chrome | P-GRV-502C | 082562082977 | 502C |
| Gold | P-GRV-502G | 082562082984 | 502G |
| Body Depth | 8.4 mm | |
| Body Length | 30 mm | |
| Body Width | 41.8 mm | |
| Gear Ratio | 1:18 | |
| Knob Depth | 8.4 mm | |
| Knob Length | 23.85 mm | |
| Knob Width | 17 mm | |
| String Post Diameter | 6 mm |
| Packaging Dimensions | 9.3 in. × 4.8 in. × 1.9 in. | |
| Weight (Packaging) | 0.67 lbs. |
| P-GRV-502C - Chrome version | Body Depth | 8.4 mm |
| Body Length | 30 mm | |
| Body Width | 41.8 mm | |
| Gear Ratio | 1:18 | |
| Knob Depth | 8.4 mm | |
| Knob Length | 23.85 mm | |
| Knob Width | 17 mm | |
| String Post Diameter | 6 mm | |
| P-GRV-502G - Gold version | Body Depth | 8.4 mm |
| Body Length | 30 mm | |
| Body Width | 41.8 mm | |
| Gear Ratio | 1:18 | |
| Knob Depth | 8.4 mm | |
| Knob Length | 23.85 mm | |
| Knob Width | 17 mm | |
| String Post Diameter | 6 mm | |
| P-GRV-502BC - Black Chrome version | Body Depth | 8.4 mm |
| Body Length | 30 mm | |
| Body Width | 41.8 mm | |
| Gear Ratio | 1:18 | |
| Knob Depth | 8.4 mm | |
| Knob Length | 23.85 mm | |
| Knob Width | 17 mm | |
| String Post Diameter | 6 mm |
 Installation Instructions | All Models |
 Specification Sheet | All Models |
My Project Lists
Specifications, Files, and Documents
Specification Sheet Questions and Answers
Click each question to see its answers.
1 answers
Why does it say to wrap string around post before tightening thumbscrew? Shouldn't they work like any other locking tuner?
Asked by Anonymous on October 13th, 2016.
October 13th, 2016
Staff Member
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.
1 answers
I have Grover tuners on my Epiphone ej200. I would like to replace them with these locking tuners. will they fit?
Asked by Anonymous on October 14th, 2016.
October 14th, 2016
Staff Member
Yes they should fit. The shaft of these tuners are 10mm in diameter. Please measure your existing tuners to insure a proper fit.
1 answers
Will this fit an epiphone dot?
Asked by Anonymous on February 16th, 2017.
February 16th, 2017
Staff Member
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.
1 answers
Will these fit an electrical guitar company guitar? aluminum. Currently with Gotoh standard tuners.
Asked by Anonymous on March 17th, 2017.
March 17th, 2017
Staff Member
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.
1 answers
Will these fit on my gibson 2013 lpj without having to drill new holes?
Asked by Anonymous on April 18th, 2017.
April 18th, 2017
Staff Member
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.
1 answers
Will these fit a Schecter Tempest Standard without mod?
Asked by Anonymous on June 1st, 2017.
June 1st, 2017
Staff Member
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
Even though I had the regular Grover tuners on my Schecter C1+, I was having string slippage issues, especially on the G-string. By putting these locking tuners on the guitar, it eliminated the excess string winding and solved the problem. I also like the 18:1 ratio, and because they are Grover tuners, they're built like a tank! Highly recommended.