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Sweetwater is an Authorized Graph Tech Dealer

Genuine New Item
Sweetwater's 2-year warranty*

Graph Tech PRL-8721-C0 Ratio Electric 6-In-Line Locking Tuned Machine Heads -

Tuners, 6 in Line, Contemporary Shape, 2-pin Casing, Locking Mechanism, and Ratio Technology - Chrome

Faster and More Accurate Tuning

Graph Tech's Ratio Locking Tuned Machine Heads offer a revolutionary new experience in ensuring your guitar is tuned more quickly and accurately than conventional tuner designs. Each tuner in the set boasts a custom gear ratio that makes each machine head react the same — roughly one full turn per whole tone. Because each string reacts the same, not only is tuning a more pleasant experience, but nailing alternate tunings is a much faster process. Graph Tech's mission statement is, "To Improve Your Playing Experience." They've nailed it with the Ratio Locking Tuned Machine Heads.

Graph Tech's Ratio technology

Though it's a simple idea, Graph Tech's Ratio technology completely changes the way you tune your guitar. All six strings are outfitted with gear ratios that ensure you attain the same response from your wound low E string as you do your unwound high E. No matter what string you are tuning, you'll notice that one full turn of the tuner equates to roughly one whole tone pitch change. The Ratio technology makes nailing your pitch much easier and faster. And you'll love how fast it is to get to Drop D and other alternate tunings.

Easy installation

One of the greatest benefits of the Ratio Locking Tuned Machine Head system is that they install onto most guitar headstocks and are completely reversible. Graph Tech's standard InvisoMatch mounting plates ship with the tuners. The machine heads mount directly to those plates and aren't screwed into your instrument. As their name would suggest, the InvisoMatch mounting plates are completely hidden by the Ratio Locking Tuned Machine Heads and offer a sleek, low-profile look.

Graph Tech

Graph Tech has made it their personal mission to supply the products that will make your instrument play better, sound better, and perform better. From the company's popular String Saver saddles to their TUSQ string nuts that can be found on countless manufacturers' guitars, the company's products are a mainstay in the guitar and bass industry. Just about every player at Sweetwater owns something created by Graph Tech, because — like their mission statement demands — they never fail to improve our playing experience.

Graph Tech Ratio Locking Tuned Machine Heads Features:

Tuner machine heads that make tuning easier and faster
Each tuner reacts the same to the same amount of force
Mini Contemporary design for a modern look
1 turn is approximately 1 whole tone
InvisoMatch mounting plates allow quick mounting with no extra screw holes

Specification	Detail
Intended Instrument	Guitar
Configuration	6-Inline
Finish	Contemporary Chrome
Locking	Yes
Gear Ratio	39:1, 24:1, 20:1, 35:1, 20:1, 12:1
Peg Diameter	0.234" (peg), 0.385" (9.7mm peg hole)

RETURN INFORMATION

We want you to be completely happy with your purchase from Sweetwater. If you are not satisfied with your product, you may return it for a refund of the purchase price within 30 days. If your purchase was eligible for Free Shipping, the shipping cost will be deducted from your credit or refund. Returns must be in the complete and original packaging with all accessories and complete documentation (Owner's Manual, warranty card, quick start guides, etc.), show no signs of wear or use, and include a Return Authorization number or be subject to a restocking fee.