Stewart-MacDonaldEverything for building and repairing stringed instruments!
Your order cart Your order | Account | Saved list
Sign in
800-848-2273, 9AM-6PM EST, M-F
Home Free catalog Quick order International Customer service

Home : Tuners : Guitar, solid peghead tuners : Grover Tuners : Grover Roto-Grip Mini Locking Guitar Machines 6-In-Line

Grover Roto-Grip Mini Locking Guitar Machines

Read 9 Reviews   |   Write a Review

Fast string changes and non-slip tuning! Rear thumbscrew locks the string for non-slip tuning and fast string changes. For 6-in-line pegheads.

See details below

Email a friend
Grover Roto-Grip Mini Locking Guitar Machines
  Item# Description In stock Price Quantity
3935 Chrome, 6-in-line Yes
3 or more $64.47  

3935-G Gold, 6-in-line Yes
3 or more $89.94  

Quantity prices apply to multiples of the same item number Selected currency  


Related items

10mm Drill Bit

Grover Mini Locking Rotomatics

Tuner Drill Jigs

Guitar Nutdrivers

Depth-stop Drill Bits

10mm Drill Bit
Grover Mini Locking Rotomatics
Tuner Drill Jigs
Guitar Nutdrivers
Depth-stop Drill Bits

Traditional Rotomatics™ with a twist! Simply wind the string once, tighten knob, and tune to pitch! You'll need fewer string wraps, change strings faster, and your tremolo will have more accurate return-to-pitch.

For 6-in-line pegheads only.

Mini Roto-Grip tuners for 6-in-line pegheads feature:
• 18:1 gear ratio for precise tuning
• Cast gear housings with no-hassle lifetime sealed lubrication
• Traditional mini Rotomatic™ removable metal knobs

Mounting screws and threaded hex peghead bushings with washers are included.
10mm-diameter (13/32") pegholes required.

To be sure these tuners fit your instrument, compare your existing machines and peghole dimensions to our listed specs to help determine the best replacement.
/\ Top of product page
 Ratings and reviews
Grover Roto-Grip Mini Locking Guitar Machines
Grover Roto-Grip Mini Locking Guitar Machines 6-In-Line
5 out of 5 stars
Based on 9 ratings Write a Review
Sort reviews by
Displaying 1 – 9
5 4-26-2013

Very sturdy and precise tuning gear. I think it's one of the better tuning machines out there.

André  São Paulo, SP - Brazil Read my reviews (6)
5 7-20-2012
Best Replacement Tuning Machines

These are the best replacement tuning machines. They are VERY easy to install for any head stock with 10mm machine holes. I switched to these because I encountered quality control problems with the Sperzels I used to use - especially with threads on either the bushings or the tuning machine itself. The Grover machine's dog ear for the set screw makes it easy to pre-fit and align the tuners. Use a straight edge to align them, tighten the bushing and then drill the small hole for the set screw--much easier than having to use the template to locate and drill the hole for the Sperzel nib. These also have a better ratio for more accurate tuning.

Robert Sakogawa  California
5 6-21-2012
Awesome Tuners!

I love these. The work amazingly well. The thumbscrew lock mechanism is excellent. The quality is top notch!

Suhr3825  CA Read my reviews (44)
5 3-14-2012
Excellent product, but wished I had purchased gold!

Purchased the chrome version, and am very impressed with the quality. Tuning seems to be very stable, as long as the peg heads are tightened securely. Very easy to mount, given that these have 3 little prongs that will press into the guitar's wood to locate when securing screw holes need to be drilled.

They are very solid, provide a nice weight to the headstock.

Muhammad  New Zealand Read my reviews (11)
3 9-07-2011
Good.... but not the best

I put these on a Strat and they work. One of them fell apart the first time I used it but they seem to be fine now. I will always go for Sperzels from this point on.

Brandon S.  Philadelphia, PA Read my reviews (6)
5 7-07-2011
Smooth as glass!!

This product exceeded my expectations!!they're silky smooth,don't slip and look awesome on my new pinecaster!!

Tom Boyle  Newport N.C.
Customer supplied image for review
5 2-05-2011
solid upgrade

A breeze to install, use and string up, and the 18:1 ratio makes for easy tuning. Very pleased.

Tape  Boston, MA Read my reviews (3)
Customer supplied image for review
5 11-18-2010
Grover Mini Roto-Grip's Blow Sperzels away!!!

These tuners are fantastic! I purchased these and installed on my Franken Steinocaster as replacements for the Sperzel Locking tuners that were installed previously. No comparison whatsoever. If you are currently using Sperzels, replace them immediately with these, they are so much better it's ridiculous. The Sperzels are 12:1, these Grovers are 18:1,you figure it out.

The ability to fine tune with these is so much better. This is the single best mod I have done to any of my Guitars. I have non-locking Grovers on one of my other guitars and they are great too. I will use Grover's exclusively on all my guitars and in all recommendations I make to my clients.

Thanks again Stew Mac - I can always count on you folks to deliver the best products at a great price with excellent service to boot. Fanfreakintastic!

Dave Grim - Owner/Builder

Dave G  Etters, PA Read my reviews (3)
Customer supplied image for review
5 10-09-2010
High Quality, Precise and easy string changes

These are easy to fit and use and are of a high quality. 18:1 gear ratio is what I always look for in a tuner.

Shawn O'Neill  Westville, South Africa Read my reviews (21)
Customer supplied image for review
Displaying 1 – 9 /\ Top of Reviews

Shown on page 59 of our latest catalog.
Select your items, then click ADD to order

To add items to your order, select the check box next to the item you want. You can edit the quantity you wish to purchase here, or in Your Order.

Select your items, then click Save for later

To add items to your saved list, select the check boxes next to the items you want. You can edit the quantity you wish to save here, or in your Saved List.

Toll-free order line:   800-848-2273   9am-6pm Eastern Time, M-F

Your order | Your account | Trade Secrets E-mail Newsletter
Home | Free catalog | Catalog Quick Order | International | Customer service
Our guarantee | Shipping | Security & Privacy | Contact us
Site map | About Us | Employment
© Copyright 2014 Stewart-MacDonald
Your shopping is secure with VeriSign! Trusted Commerce