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Grover Mini Roto-Grip Locking Rotomatics (505 Series) 6-In-Line Tuners

5.0
  • 11 Reviews
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Grover Mini Roto-Grip Locking Rotomatics (505 Series) 6-In-Line Tuners Chrome

Chrome

Item # 3935
In stock, ready to ship!

$75.68

3 or more $67.36
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Grover Mini Roto-Grip Locking Rotomatics (505 Series) 6-In-Line Tuners Gold

Gold

Item # 3935-G
In stock, ready to ship!

$99.93

3 or more $88.94
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Grover Mini Roto-Grip Locking Rotomatics (505 Series) 6-In-Line Tuners

About This Item

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.

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.


Installation Tips

Mounting screws: Pilot holes required. Installing delicate screws into hard wood requires great care and accuracy. We highly recommend the #1712 Depth-stop Drill Bit (5/64" bit) for the pilot hole before installing these screws. Lubricate the screw threads with cutting lubricant (also wax or a bar of soap) to reduce friction and help them thread properly.


    • Item #
    • Weight
    • 3935
    • 0.5140 lbs. (0.23 kg)
    • 3935-G
    • 0.5260 lbs. (0.24 kg)

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5.0
  • 4.82 average rating from 11 reviews
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5.0

Excellent tuners - Great Customer Service

By

Verified Buyer


Very good tuners. Smooth tuning, rock solid for string bending.
Had a problem with 1 tuning machine. Stewmac had a new one to me in 2 business days.
Excellent customer service!!

5.0

Chrome Mini Roto-Grip Locking Rotomatics (505 Series 6-In-Line Tuners

By

Verified Buyer


These are really a step up for the Fender Squier Stratocaster original tuners! I'm sure some who have the Fender Squiers are ok with the tuners, but mine just were not working very well on this new guitar. The 505 Locking Rotomatics once installed work superb . Very linear with the 18:1 ratio rather than the original 15:1. (Somewhere I read the originals are 14:1, but I counted the turns and mine were 15:1, so the Grover's 18:1 are much nicer). The Grovers are a superior upgrade.

Drilling the old holes out to .391" should not be undertaken lightly. IT SHOULD NOT BE DONE BY AN OLD ELECTRICAL HAND DRILL as I did. I had several holes break wood off the headstock when the 25/64" (.391") drill exits the hole. I'm no luthier and it showed. A real drill press with the guitar securely mounted and stationary, or take it to a real luthier and get it done properly. Luckily the tuners cover up most of the sloppy work I did. GREAT TUNERs once installed. I also purchased the 5/64" depth-stop drill bit {Item # 1712} as recommended for the small mounting hole for the backside of the headstock and that worked very well.

Make no mistake, drilling the old 8mm holes out on the Fender Squier to .391" requires the right tools or at least someone who knows what they are doing with wood so you don't ruin the holes and the headstock!

5.0

Great for tuning accuracy

By

Verified Buyer


I bought these locking tuning machines for a Strat clone I am piecing together. The tuning is so smooth and easy to get right on pitch and since they are locking tuners they stay in tune perfectly.

5.0

Great for 12 strings

By

Verified Buyer


I bought 2 sets to put on a 12 string a few years ago. Replacing strings on one of those is a major hassle, and these make it easy. They were missing from StewMac for quite a while and, although I don't expect to be getting another 12 string, it's a comfort to have them back.

5.0

Great!

By

Verified Buyer


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

5.0

Awesome Tuners!

By

Verified Buyer


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

5.0

Excellent product, but wished I had purchased gold!

By

Verified Buyer


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.

3.0

Good.... but not the best

By

Verified Buyer


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.

5.0

solid upgrade

By

Verified Buyer


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

5.0

Grover Mini Roto-Grip's Blow Sperzels away!!!

By

Verified Buyer


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!



Sincerely,

Dave Grim - Owner/Builder

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StewMac PDF Catalog, page 61 See Grover Mini Roto-Grip Locking Rotomatics (505 Series) 6-In-Line Tuners
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