3+3 Lefty Electric Locking Ratio Machine Head Vintage Button (Select Finish) - Graph Tech Guitar Labs Ltd.

3+3 RATIO Lefty Electric Locking Machine Head Vintage Button (PRL-8341-L, Select Finish)

Name: 3+3 RATIO Lefty Electric Locking Machine Head Vintage Button (PRL-8341-L, Select Finish)
Brand: Graph Tech Guitar Labs Ltd.
SKU: PRL-8341-LC0
Price: 160.94 USD
Availability: InStock

PRL-8341-LC0

Regular price Price: $160.94 USD Sale

Chrome

Gold

Black

SCIENCE BEHIND RATIO:

RATIO® patented gear technology
RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.

From Low E to High E 39:1, 24:1, 20:1, 35:1, 20:1, 12:1.

We balanced the gear ratios to each string simplifying the tuning process.

With RATIO®, a half turn is a semi-tone!

Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

RATIO Machine Heads explanation video

Description:

The PRL-8341 is a left-handed set of Locking RATIO® Calibrated Machine Heads for electric guitar that use 3 x 3 tuners, such as Gibson style and PRS style guitars.

A great upgrade over a single gear machine heads, such as Grover, Schaller, Sperzel, Kluson, etc.

Probably the easiest machine heads to retrofit using the Invisomatch Mounting Plates which allows you to use your existing screw holes.

It has a two pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates [opens in new tab].

4 different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.

3x3 tuners set

Specification:

Gear ratio: unique for each string position - one turn-one tone
Peg holes diameter required: 13/32" (10mm)
String post diameter: 0.236" (6mm)
String post length to string hole: 0.910” (23mm)
Weight per single machine head: 0.083lbs (38g)
Weight per set of six: 0.496lbs (225g)
String diameter up to 72 gauge
Includes 6 machine heads, mounting screws and bushings
Includes complimentary 4 sets of aluminum mounting plates

GUIDES:

REVIEWS:

Rudefish

5.0 out of 5 stars

Direct fit for tuners on a an old acoustic

Reviewed in the United States on November 25, 2021

Verified Purchase

"I specifically bought these locking tuners to upgrade an acoustic guitar I’ve had for ~40 years. It’s not a well known brand and I didn’t want to have to drill holes to install a new tuner. These tuners worked perfectly though, I did have to enlarge the hole the tuner shaft goes through. I also purchased the chrome adapter plates from the manufacturer’s website to finish the look. These are high quality tuners and were an excellent upgrade for my guitar."