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Graph Tech Guitar Labs Ltd.

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Graph Tech Guitar Labs Ltd.

4.5 (123)

Ratio by Graph Tech Model # 8621-C7 (12:1 to 48:1) Electric Locking 3x4

Name: Graph Tech Guitar Labs Ltd. Ratio by Graph Tech Model # 8621-C7 (12:1 to 48:1) Electric Locking 3x4 - Ratio by Graph Tech Model # 8621-C7 (12:1 to 48:1) Electric Locking 3x4
Brand: Graph Tech Guitar Labs Ltd.
SKU: 32905748152343
Price: 187.77 USD
Availability: InStock
Rating: 4.8333 (11 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$187.77

Quantity

Color

Black

Quantity

Description

RATIO® patented gear technology
RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.
From Low B to High E 48:1, 39:1, 24:1, 20:1, 35:1, 20:1, 12:1.
We balanced the gear ratios to each string simplif...

Reviews

4.8

12 ratings

These locking tuners never disappoint.

This is the 5th set of Graph Tech locking tuners I have purchased. I really love the easy installation and reliability these tuners offer. No need to drill holes or pay extra money to have a pro install them.

Gerardo · March 6, 2026

Great tuners

Fits perfectly on my schecter omen elite 7.

Maxime · September 15, 2025

Major Upgrade

Replaced the factory machine heads on my Jackson JS32 7-string. Goodbye tuning instability and searching for that sweet spot in adjustments is much more simplified.

TIMOTHY · July 6, 2025

Delivery & Returns

Returns accepted within 45 days

Exclusive offer available

Graph Tech Guitar Labs Ltd.

4.7 (3.4K)

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Description

Reviews

4.8

12 ratings

These locking tuners never disappoint.

Gerardo · March 6, 2026

Great tuners

Fits perfectly on my schecter omen elite 7.

Maxime · September 15, 2025

Major Upgrade

Replaced the factory machine heads on my Jackson JS32 7-string. Goodbye tuning instability and searching for that sweet spot in adjustments is much more simplified.

TIMOTHY · July 6, 2025

Delivery & Returns

Returns accepted within 45 days

Exclusive offer available

Graph Tech Guitar Labs Ltd.

4.7 (3.4K)

G

Ratio by Graph Tech Model # 8621-C7 (12:1 to 48:1) Electric Locking 3x4

Reviews

Delivery & Returns

Graph Tech Guitar Labs Ltd.

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