Skip to main content
Play Video
Graph Tech Graph Tech

Graph Tech Ratio 6-In-Line Lefty Electric Locking Tuning Machine Heads Chrome 6 String

Q&A SKU #M02019000002001
136.8 $136.80
Or
6-Month Special Financing
Limited time Learn more
More ways to pay:
Loyalty Points Icon
Loyalty Points Icon
Earn 1,096 reward points
($10.96 in credit)
Earn 1,096 reward pts.
($10.96 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
Order Now!
This item is backordered but is available to reserve now. You will not be charged until the item ships.

Style: Chrome 6 String

Black 6 String $136.80 Chrome 6 String $136.80
  • Free Shipping
  • Lowest Price
  • Ships Internationally
Chevron Right Icon
Overview

Locking Ratio calibrated machine heads for electric guitars that use 6-in-line tuners.

The Graph Tech Ratio 6-in-line lefty electric guitar locking machine heads incorporate different string gauges into the tuning equation. Graph Tech 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 adjustments, delivering predictable, precise tuning on every string. The Graph Tech PRL-8721-L is a left-handed set of locking Ratio calibrated machine heads for electric guitars that use 6-in-line tuners.

It has a two-pin casing that can be used as is, or with Graph Tech’s InvisoMatch mounting plates. Four 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.

Features

  • Includes:
  • Includes 6 machine heads, mounting screws and bushings
  • 4 complimentary sets of aluminum mounting plates included

Order today.

Specs

Ratio 6-In-Line Lefty Electric Locking Tuning Machine Heads Specifications:

  • Gear ratio: 39:1, 24:1, 20:1, 35:1, 20:1, 12:1
  • Peg holes diameter required: 13/32" (10mm)
  • String post diameter: 0.236" (6mm)
  • String post length to string hole: 0.910” (23mm)
  • String diameter up to 72 gauge
Q&A

Questions & Answers

Do you have questions about this product?

Shop with a Friend
Free Shipping
  • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
  • Orders placed before 3 p.m. ET usually ship the same business day.
Learn More
2-Year Free Warranty on Guitars

Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

Contact Us for Details
We're Here for You

Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

Contact Us
Proactive Advisor Support Chat