Tuner

    Grover 502 Roto-Grip Locking (6-in-line)

    Grover's locking version of their Rotomatic tuner line for 6-in-line headstocks, the same 10mm-hole footprint as their non-locking Rotomatics with a locking string post.

    6 guitars checked: 6 likely drop-in.

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    Where to buy

    We haven't added a verified place to buy this one yet.

    Part specs

    Tuner hole size

    10mm

    Confirmed

    Mounting pattern

    Single rear mounting screw with a threaded hex peghead bushing, confirmed via Grover's own manufacturer spec sheet

    Confirmed

    Gear ratio

    18:1

    Confirmed

    Installation notes

    Grover's locking line ships at the same 10mm industry-standard hole size as their non-locking Rotomatics, a common drop-in on guitars already using modern 10mm tuner bushings.

    Guitars we've checked

    6 guitars checked: 6 likely drop-in.

    Fender Jim Root Telecaster

    Fender

    Jim Root Telecaster 2021

    Likely drop-in

    Matches this guitar's confirmed 10mm tuner holes, a locking upgrade over the stock tuners.

    Why we say this

    Grover's locking line ships at the same 10mm hole size as this guitar's confirmed tuner holes.

    Fender Player Jazzmaster

    Fender

    Player Jazzmaster 2021

    Likely drop-in

    Matches this guitar's confirmed 10mm tuner holes, a locking upgrade over the stock tuners.

    Why we say this

    Grover's locking line ships at the same 10mm hole size as this guitar's confirmed tuner holes.

    Ibanez AZES40

    Ibanez

    AZES40

    Likely drop-in

    Matches this guitar's confirmed 10mm tuner holes, a locking upgrade over the stock tuners.

    Why we say this

    Grover's locking line ships at the same 10mm hole size as this guitar's confirmed tuner holes.

    Jackson Kelly KEX

    Jackson

    Kelly KEX 2022

    Likely drop-in

    Matches this guitar's confirmed 10mm tuner holes, a locking upgrade over the stock tuners.

    Why we say this

    Grover's locking line ships at the same 10mm hole size as this guitar's confirmed tuner holes.

    Schecter C-1 Hellraiser

    Schecter

    C-1 Hellraiser 2022

    Likely drop-in

    Matches the tuner holes already on this guitar. A straightforward locking tuner upgrade, no drilling needed.

    Why we say this

    Matches the confirmed 10mm tuner bore on this guitar.

    Squier Deluxe Stratocaster

    Squier

    Deluxe Stratocaster

    Likely drop-in

    Matches this guitar's confirmed 10mm tuner holes, a locking upgrade over the stock tuners.

    Why we say this

    Grover's locking line ships at the same 10mm hole size as this guitar's confirmed tuner holes.

    Help improve this data

    Nothing is flagged as an open question here right now. If you have fitted something to this 502 Roto-Grip Locking (6-in-line) that we haven't covered, send it in.