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Your cart is empty.Grover Rotomatic 406G mini locking guitar tuning machine heads make quick work of tuning. With a gear ratio of 18:1, these locking tuners give you all the benefits of standard Rotomatics - plus the positive locking of Grover's internal cam post. Insert your string through the string hole, pull to tension by hand, and start to tune. As you begin tuning, only the locking cam in the string post turns. The string post begins to turn once the string is locked. In under one string post revolution, you'll be in tune. And you'll stay in tune, with Grover's Rotomatic 406G locking guitar tuning machines. Grover: exceptional quality and lifetime warranty Grover has been keeping the world's finest stringed instruments in tune for over a century. Grover started out in the late 1800's producing banjo and guitar tuning machine heads. Eventually the company expanded into making tuners for mandolin, dulcimer, ukulele,
Fredrick K Blevins
2025-07-12 12:33:52
Perfect.
Louis franco
2025-07-06 11:33:09
These tuners are amazing and blow any other locking tuners out of the water! I have a Les Paul that would not stay in tune....I tried everything, including locking Schallers and nut lube...and it still went out of tune. I just installed these and was blown away! With minimal stretching these tuners held even with over bending and hard play....now I need them for my Stats, tele and My Gretsch!!
AJB in AZ
2025-06-17 15:29:45
Perfect fit for my Gretsch. Easy no fuss locking/unlocking mechanism and they look sharp.
Aviv
2025-06-10 15:53:42
Machine head buttons are actually smaller than pictured. I had to order them separately. But Grover are the best tuners out there
kevinkirkpatrick
2025-06-02 12:50:13
These fit perfectly. Easy to install and work great.
Michael Sampson
2025-05-13 14:33:23
super easy and great looking on my Gretsch
Craig Helm
2025-03-29 15:15:52
One of the 6 locking tuners was the wrong one in the package and I had to contact the vendor Grover for a no cost exchange. Otherwise, the tuners string up fast per the directions and the 18:1 ratio allows for a more granular tuning of the strings
David R.
2025-02-08 14:52:52
Grover. What more is there to say.
John Houghton
2025-01-27 15:45:03
Big time Improvement... I recommend these tuners highly.
Groovemonkey
2025-01-14 11:38:07
...and as an added bonus the black set looks amazing on the black headstock. Very easy to fit - these were the right size and aligned with all existing holes. 20 minute job. Also - I've never had locking tuners before and have to say very impressed/converted. Above all - the guitar has now become an instrument I can pick up an play. It doesn't matter how good a guitar's sound is if it keeps slipping out of tune - it will quickly become 'for display only'. Seems to be a lot of people fixing the low end Korean PRS's with these tuners. Definately worth it - the ONE sounds great for rock and now I can even throw in some cheeky octave melodies without making anybody wince.
David Cormier
2024-12-19 12:37:11
Thank You, They are Perfect for my Guitar
Customer
2024-11-17 11:08:50
I have Grovers on two guitars and they are great. Ordered this set for my 1961 Gretsch 6120 owned since new in 1962 and in pristine condition with all attachments. I was advised not to put these on as they require precise drilling to enlarge holes, which would destroy collector value of the guitar. It was suggested I check out Waverly heads at Stew Mac to see if the Item 1129G will fit. Also was advised to check with Gruhn Guitar in Nashville who did the appraisal on my guitar. I now have to find out how to return set to Amazon.
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