Inserts for almost all guitar machine heads on the market
Among all guitar machine heads there are a handful of different shaft sizes. It is therefore important that the buttons have an exact insert to ensure an exact fit on the shaft of the respective guitar mechanics.
We at Guitar Monkey therefore offer a total of 3 different inserts in order to offer our buttons for almost all guitar mechanics on the market.
ATTENTION: Please measure the shaft of your guitar mechanics before buying to be on the safe side. If you are unsure, contact us and we will be happy to help you. Our inserts do not fit all guitar tuners on the market, only those listed below.
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Insert 1 - Gotoh
Our Insert 1 fits all Gotoh guitar machine heads or guitar machine heads made by Gotoh for other manufacturers:
- Gotoh guitar machine heads
- PRS Phase III guitar machine heads
- Taylor guitar machine heads by Gotoh
- Ibanez guitar machine heads by Gotoh
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Insert 2 - Schaller
Our Insert 2 fits all Schaller guitar machine heads or guitar machine heads made by Schaller for other manufacturers:
- Schaller guitar machine heads
- PRS Phase I by Schaller
- PRS Phase II by Schaller
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Insert 3 - Multi Fit
Our Insert 3 fits many of the following guitar machine heads, as they all use the same shaft:
- Grover guitar machine heads
- Gibson guitar machine heads
- Fender locking guitar machine heads
- PRS SE (guitars only from BJ 2010-20 22)
- Hipshot Guitar Machine Heads
- Graph Tech Guitar Machine Heads
- KLUSON Germany Guitar Machine Heads
- Daddario Guitar Machine Heads
- Solar Guitar Guitar Machine Heads
Technical drawings
So that you buy 100% the right buttons for your guitar machine heads, we recommend that you take a look at our technical drawings and measure the exact dimensions before you buy our buttons.

Big German Wood (ebony/tamarind wood)
Click here for the complete technical drawing
Small German Wood (ebony/tamarind wood)
Click here for the complete technical drawing
Vintage Kidney Wood (ebony/tamarind wood)
Click here for the complete technical drawingWeight comparison
Save weight with our wooden buttons
The following table shows the different weights of the different Guitar Monkey buttons. It becomes clear that an enormous weight saving is possible, especially with the wooden buttons.
If, for example, the German Big Metal Buttons are replaced by German Big Wood Buttons (ebony or tamarind wood), the weight can be reduced from 228g by 48g to 180g Reduce per set of 6. That corresponds to a weight saving of over 21%!
mechanics/ Tuners |
Button | Hardware |
Mechanics total/ Total tuner |
6 String Set |
24g |
Big German Metal 10g |
4g | 38g | 228g |
24g |
Small German Metal 7g |
4g | 35g | 210g |
24g |
Vintage Kidney Wood ≈ 2.5g * |
4g | 30.5g | 183g |
24g |
Big German Wood ≈ 2g * |
4g | 30g | 180g |
24g |
Small German Wood ≈ 2g * |
4g | 29.5g |
177g |
* Weight and color may vary slightly as wood is a natural product
Size comparison
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All dimensions in millimeters (mm).
Wood = ebony or tamarind wood
Our guitar mechanics wooden buttons
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Small German Ebony Guitar Mechanics Tuner Wings / Knobs / Buttons
Offerer:Guitar MonkeyNormal price From $29.00 USDNormal pricebasic price pro -
Big German Ebony Guitar Mechanics Tuner Wings / Knobs / Buttons
Offerer:Guitar MonkeyNormal price From $29.00 USDNormal pricebasic price pro -
Big Vintage Kidney Bean Ebony Guitar Mechanics Tuner Wings / Knobs / Buttons
Offerer:Guitar MonkeyNormal price From $29.00 USDNormal pricebasic price pro -
Small German Tamarind Wood Guitar Mechanics Tuner Wings / Knobs / Buttons
Offerer:Guitar MonkeyNormal price From $29.00 USDNormal pricebasic price pro
Unsere Monkey Locks - Locking Tuners
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Single - Monkey Lock - Locking Tuner - Guitar Clamp Mechanism - Big German Metal Button
Normal price From $13.00 USDNormal pricebasic price pro -
Single - Monkey Lock - Locking Tuner - Guitar Clamp Mechanism - Small German Metal Button
Normal price From $13.00 USDNormal pricebasic price pro -
Single - Monkey Lock - Locking Tuner - Guitar Clamp Mechanism - Megalight Monkey Grip Button - Small German
Normal price From $15.00 USDNormal pricebasic price pro -
Single - Monkey Lock - Locking Tuner - Guitar Clamp Mechanism - Celtic Megalight Monkey Grip Button - Small German
Normal price From $15.00 USDNormal pricebasic price pro
Our bass mechanics
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Single Bass Mechanics - Slinky Metal Button
Normal price From $9.00 USDNormal pricebasic price pro -
Single (1 L) Silverback Vintage Bass Tuner Prejazz in Black - Clover Leaf Buttons
Normal price $11.00 USDNormal pricebasic price pro -
Single (1 R) Silverback Vintage Bass Tuner Prejazz in Black - Clover Leaf Buttons
Normal price $11.00 USDNormal pricebasic price pro -
Single (1 L) - Silverback Vintage Bass Mechanics Prejazz in Nickel - Clover Leaf Buttons
Normal price $11.00 USDNormal pricebasic price pro