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Home : Tuners : Guitar, solid peghead tuners : Sperzel Trim-Lok Guitar Machines, 3L/3R

Sperzel Trim-Lok Guitar Machines

Read 19 Reviews   |   Write a Review

Sperzel's rear thumbscrew locks the string, making these machines ideal for tremolo guitars. For 3-left/3-right pegheads.

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Sperzel Trim-Lok Guitar Machines
  Item# Description In stock Price Quantity
3421 Satin chrome, 3L/3R Yes
3 or more $55.30  

3421-B Satin black, 3L/3R Yes
3 or more $59.33  

3421-G Satin gold, 3L/3R Yes
3 or more $68.34  

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


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10mm Drill Bit
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Sperzel Trim-Lok Guitar Machines, 6-in-line
Guitar Nutdrivers

Cast gear housings with sealed lubrication. Single pin mount keeps tuner from rotating, no mounting screws needed. Recommended for 9/16" - 11/16" thick pegheads.

• 12:1 ratio
• 10mm (13/32") diameter pegholes required
• Removable metal knobs
• Threaded peghead bushings included
• Sets of 6

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.
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 Ratings and reviews
Sperzel Trim-Lok Guitar Machines
Sperzel Trim-Lok Guitar Machines, 3L/3R
5 out of 5 stars
Based on 19 ratings Write a Review
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Displaying 1 – 10 1  2 >
4 3-20-2013

Very good quality, nice looking, great job, easy to fix it (not only for Gibson LP). I should prefer a better ratio (at least 16:1) but i thing this is a minor issue. Hope it stays in tune for years (I'll wait some years to give the fifth star:-)) . Stewmac is very reliable and professional in shipping all over the world. Nice job guys!

oldvalue  Athens GR
4 7-25-2012
Almost great, but...

I love these tuners with 2 small exceptions:

1) Sometimes large string gauges are hard to get through the hole.
2) This is more important. There is a little bit of play in the worm gear mechanism. The quality is exceptionally good except for this worm gear play. With strings to tension, this is not very noticable, but it doesn't change the fact that it exists.

Ned Milburn -  Dartmouth, NS
5 7-21-2012
Love my Sperzels

I have Sperzels on all of my guitars. They are the best replacements for tuners on guitars you have trouble getting to stay in tune due to various issues. I've been putting them on all my guitars for almost 20 years, the most recent was my new Gibson SG. I would suggest also purchasing the jig they sell to drill the hole for installing them. It makes installing the Sperzel heads fast and perfect every time. I also like the idea of the alignment pin instead of screws so your not making multiple holes in your head stock and if you decide to put the original tuners back on your guitar there are no visible marks left!

Chuck Hundley  Highland, Ca.
5 6-28-2012
Fantastic, solid, high quality.

Better than I imagined, worth it 100%. Compared to my last tuners, these tuners are the best. They look good also. Do not hesitate on getting these.

Guitar nut  NM USA
5 6-11-2012

El producto es excelente. La instalaciĆ³n es de lo mas sencilla y el precio es incomparable!!!

Pablob  Argentina
5 1-11-2012
Simply the Best

They do everything they claim, and they do it well. I was very impressed with the performance and how well made my set was =]

Nick.H  Sydney Read my reviews (5)
5 1-07-2012
Superb tone - Killer looks

I have two sets of these. They are a kinda heavy, but make your life really easy when tuning and replacing strings. Really, I would not change them for any reason.

Acid  Buenos Aires Read my reviews (3)
5 12-30-2011
Great tuners

These are awesome tuners. I have them in my electrics as well as my acoustics. Installing them is somewhat tricky, and they may come out crooked even if you use the included cardboard template. StewMac sell a nice little jig to solve that issue. I always hear people complain about the ratio, as these are 12:1 and there are some tuners out there that have an 18:1 ratio. In all my 30 years as a guitarist I have never encountered a player that could not reasonably tune a guitar because of a 12:1 ratio. You can blame that on deafness, but not on the ratio. The tuning stability and ease of string changing is worth every penny you pay for these tuners. Get them.

Martinez Violworks  Lawrence, MA USA
5 9-25-2011
Great tuners

Great tuners, easy to install strings, gently work, light weight.
Good price!

Natalya Lepskaya  Russia Read my reviews (4)
Customer supplied image for review
5 6-04-2011
Lock, Lock, It's There

This is my second set of these tuners and I can't say enough about them. I put them on my first project guitar ten years ago and they're still working great. I love that you can just stick the string in, lock it down and tune up. I can leave my other guitar in its case for a month, come back to it and it's still in tune. Great tuners!

Porterhouse Pat  Charleston, IL Read my reviews (3)
Displaying 1 – 10 1  2 > /\ Top of Reviews

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