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Graph Tech PRL-8311-C0 Locking Ratio Guitar Tuning Pegs, Electric 3+3 Contemporary, Chrome 2 Pin

The PRL-8311-C0 is a set of Ratio Locking Tuned Machine Heads for an electric guitar that uses three a side tuners. It has a contemporary shaped button, has a two pin casing and is finished in chrome.


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MSRP: Old Price $139.95 Discounted Price $118.96 Save : $20.99 (15%)
In Stock & Ready To Ship!
MSRP: Old Price $139.95 Discounted Price $118.96 Save : $20.99 (15%)
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The Simple Genius Behind The Ratio® Tuned Machine Heads is it's utilization of its patented multi-gear technology. Every string on your guitar responds differently to tension. In other words, the plain G string jumps in pitch to small amounts of tension while the D string (with a thinner core) requires more turns on the machine head to get the same pitch change.

Graph Tech has tuned the gear ratios to each string position so that every string responds the same to any tuning adjustment anywhere from 12:1 to 39:1 gear ratio. It's as dramatic as switching from a manual transmission on a car to an automatic. No more thinking about which string you are tuning! With Ratios, one turn is about one tone change on every string, making tuning, retuning and open tunings easier, quicker and more intuitive.

Predictable, Precise Tuning, Retuning and Open Tunings
Ratio® tuning feels natural. You don't have to think about which string you are tuning because they all feel and respond the same. No more overshooting the Low E or G. No more twisting away on the High E or D string. Open tunings have never been easier. String gauges such as light top, heavy bottom are no problem with Ratio®; they still do the same precision tuning.

  • Each set of Ratios include InvisoMatch installation plates for a quick and easy install without having to drill new holes!
  • Locking for fast string changes and better tuning stability
  • Patented Multi-gear Technology (12:1 to 39:1)
  • High ratio gears feature a double envelope worm and a hardened steel gear to ensure durability
  • Predictable, precise tuning, every string

Get yours today; with the security of our many decades of experience and Sam Ash Direct efficient order processing, your satisfaction is guaranteed!

Update to the modern to tunning machine


I bought these after going I to the store to buy a different brand. The sales associate talked me into these tuners. I put these on a custom guitar I was building with tremolo. Tuners were not something I thought about when building the guitar, as I did not know about Ratio tuners. These lock up nice and hold tune very well. The different gear ratio makes tuning very easy and you have the same amount of turns as every string. I am glad I went with these tuners and would recommend them to anyone. I do wish a drill jig, or template would have been available as the posts are a little hard to drill for and get right.



PRL-8311-C0 Locking Ratio Guitar Tuning Pegs, Electric 3+3 Contemporary, Chrome 2 Pin

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