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Click the link below to download the file at its actual size:<a href="https://cdn.shopify.com/s/files/1/2372/8913/files/Ratio_Open_Back_Buching-Large_Spec_sheet_211025.pdf?v=1761072697" target="_blank" rel="noopener noreferrer">Ratio_Open_Back&amp;Buching-Large_Spec_sheet_211025</a><img src="https://attachments.gorgias.help/qgaXzxadBM7vDWOp/hc/g5KDM28ZApx9aByw/2025102118-b93a8f64-3b24-4c31-a6a1-0e671265a18a-ratio_open_back&amp;buching-large_spec_sheet_211025_page_1.jpg" style="width: 692px;" class="fr-fic fr-dib fr-fil"><img src="https://attachments.gorgias.help/qgaXzxadBM7vDWOp/hc/g5KDM28ZApx9aByw/2025102118-a427f0a9-88ba-438c-afa2-c952f6ad6fad-ratio_open_back&amp;buching-large_spec_sheet_211025_page_2.jpg" style="width: 692px;" class="fr-fic fr-dib fr-fil">

Click the link below to download the file at its actual size:. Ratio_Open_Back&Buching-Large_Spec_sheet_211025.

Open Back Bushing-Large Actual Size Templeates & Measurements

MACHINE HEADS

SPEC. SHEETS

Finding the Right Nut (2)

How to Measure a Guitar Nut and Saddle (2)

Finding the Right Acoustic Saddle (2)

Finding the Right String Saver Saddle (2)

You have so many guitar nuts, how do I figure out which one is right for my guitar? (2)

How can I find out if the saddles will fit my Epiphone ES 335's bridge? (2)

How do i know what saddle to use for my tune-o-matic bridge? (2)

Finding the Right Nut Video (2)

Installing a Blank Nut Video (2)

Installing a Slotted Nut Video (2)

How to Install a Ukulele Nut Video (2)

Finding the Right String Saver Saddle Video (2)

Finding the Right Acoustic Saddle Video (2)

How to Install a Ukulele Saddle Video (2)

How to Install Tune-A-Lele Machine Heads on Your Ukulele Video (2)

HOW TO QUICKLY FIND & INSTALL PARTS

Returns & Exchanges Policy

What forms of payment do you accept?

What countries do you ship to?

I placed an order on your website, will I get an email confirmation?

How long will it take to have my order delivered?

Will I have to pay import duties on my order?

ORDER FAQs

Finding the Right Nut

You have so many guitar nuts, how do I figure out which one is right for my guitar? copy

How to Measure a Guitar Nut and Saddle

HOW TO FIND THE CORRECT NUT

What is TUSQ made of?

How is TUSQ different from any other material (bone, micarta, and corian) used in nuts and saddles)?

What does TUSQ sound like on an electric guitar?

Graph Tech Nut & Saddle Characteristics

What is Black TUSQ XL?

How is Black TUSQ XL different than any other material (bone, micarta, and corian) used in saddles in nuts?

Will installing a BLACK TUSQ XL (formerly Trem-Nut) or TUSQ nut change my tone?

Why is NuBone only available in pre-slotted and compensated models? copy

Will NuBone improve the sound on my guitar? copy

What is NuBone?

What is the difference of TUSQ and NuBone?

MATERIALS

Guitar Un-Lock Nut Installation Instructions

What is the Graph Tech Un-Lock Nut?

Why was the Un-Lock Nut developed?

What sets the Un-Lock Nut apart from traditional locking nuts?

Do I need locking machine heads to use the Un-Lock Nut?

How does the Un-Lock Nut enhance the feel and connection of strings to the guitar neck?

Can I switch to alternate tunings with the Un-Lock Nut?

Is the Un-Lock Nut compatible with Floyd Rose-style guitars?

Why didn’t they just use locking tuners in the first place for wild dive bombs with a locking bridge?

FAQs

UN-LOCK NUT

Guitar Nut Installation Instructions

Bass Nut Installation Instructions

SuperCharger Kit Installation Guide

You have so many guitar nuts, how do I figure out which one is right for my guitar?

Can I modify TUSQ to fit my guitar?

What type of glue should I use for bonding Graph Tech materials to wood?

Can I use acetone to remove CA glue from TUSQ material?

Can I modify Black TUSQ XL to fit my guitar?

What type of glue should I use for bonding Graph Tech materials to wood? copy

How deep should I carve the groove for a nut on my guitar neck?

BLANK

Why is there a little tab on the bottom of the PT-5000-00 nut?

PRE-SLOTTED

INSTALLATION

Finding the Right Nut Video

Installing a Slotted Nut Video

Installing a Blank Nut Video

How to Install a Ukulele Nut Video

VIDEOS

Which manufacturers use TUSQ on their guitars?

Will the 6060 fit my Epiphone instrument?

What is the difference between Black TUSQ XL and a TUSQ nut?

Will the self lubrication wear off the nut?

Neck Woods

Fretboard Woods

Different Woods, Different Tones (Part 2)

Why is NuBone only available in pre-slotted and compensated models?

Will NuBone improve the sound on my guitar?

Why is NuBone only available in packs of 10 pieces?

Paul Reed Smith Guitar Nuts

What are the mechanical and chemical properties of your nut materials?

NUTS

How will this help me reduce string breakage?

Install an Acoustic Saddle

How do i know what saddle to use for my tune-o-matic bridge?

Electric Saddle Installation Instructions

Finding the Right Acoustic Saddle

Finding the Right String Saver Saddle

How can I find out if the saddles will fit my Epiphone ES 335's bridge?

HOW TO FIND THE CORRECT SADDLES

Why Guitar Strings Break

Why Use String Saver Saddles

What is the difference between String Saver Originals and String Saver Classics?

What if the strings start to dig into the saddle?

If a string starts breaking using String Saver Saddles

What are the String Saver saddles made out of?

The Acoustics of The Guitar - the Science Behind Acoustic Guitar Tone

Acoustic Saddle Installation Instructions

FR Locking Saddle Installation Instructions

What if I have an under the saddle pick up?

Can I modify String Saver Originals for my guitar?

How does intonation work?

ResoMax Tune-o-Matic Bridge Saddles Installation Manual

Finding the Right String Saver Saddle Video

Finding the Right Acoustic Saddle Video

How to Install a Ukulele Saddle Video

What material is String Saver made out of?

What if the strings dig in to the String Saver saddles?

If a saddle starts breaking strings

What are the mechanical and chemical properties of your saddle materials?

SADDLES

How do I know if you bridge pins will fit my guitar?

Will TUSQ bridge pins improve my tone?

Bridge Pins Installation Instructions

BRIDGE PINS

STRING TREES

How do i know what saddle to use for my tune-o-matic bridge? copy

HOW TO FIND THE CORRECT BRIDGES

How will this help me reduce string breakage? copy

What is the difference between String Saver Saddles and TUSQ saddles?

What are ResoMax bridges made out of?

How will this light weight bridge benefit me?

Will the U.L.F. coating wear off?

Will the ResoMax tailpiece benefit me? copy

ResoMax Tune-O-Matic Bridge Specs and Technical Information

ResoMax Archtop Bridge Specs and Technical Information

LB63 Specs and Technical Information

Ghost Hipshot Bridge Specs and Technical Information

HeliumX for Bass Bridge Specs and Technical Information

Setting up Your Graph Tech Locking Bridge

ResoMax Wraparound Bridge Specs and Technical Information

Resomax Tune-o-Matic Bridges & Epiphone Guitars (mid 90's)

How to install a Resomax tune-o-matic Bridge [Video]

LB63 Installation Instructions

HeliumX Bass Bridge User Manual

ResoMax Tune-O-Matic Installation Instructions

ResoMax Wraparound Bridge Installation Instructions

What is the autolock locking feature?

Will the autolock magnets interfere with my regular pickups?

What is the difference between NVS, NV1 and NV2?

What are the U.L.F saddles made from?

Will the ResoMax tailpiece benefit me?

How easy is it to install a ResoMax bridge?

Product Spotlight: Resomax Harmonic Bridge Systems

BRIDGES

Standard and Locking Machine Heads Installation Guide

Open-back and Retro Machine Heads Installation Guide

Bass Y-Style Machine Heads Installation Guide

Bass Clover-Style Open-Back Machine Heads Installation Guide

Ukulele Machine Heads Installation Guide

Are 12-string Ratio acoustic tuners sets possible?

Standard and Locking Machine Heads Actual Size Templates & Measurements

Locking Staggered Machine Heads Actual Size Templates & Measurements

InvisoMatch Adapter Plates - Actual Size Templates & Measurements

Open-back Machine Heads Actual Size Templates & Measurements

Bass Y-Style Machine Heads Actual Size Templates & Measurements

Bass Clover-style Open-back Machine Heads Actual Size Templates & Measurements

Ukulele Machine Heads Actual Size Templates & Measurements

Ukulele Bass Machine Heads Actual Size Templates & Measurements

Guitar and Bass Button Post Measurements

How to Install Tune-A-Lele Machine Heads on Your Ukulele Video

How to Install Ratio Tuners Video

Why Use Tune-a-Lele Machine Heads Video

Why Use InvisoMatch Plates Video

The saddle wires have 2 sides, which is which?

How do I ground my acoustic guitar?

Can I replace the saddles on my Line6 Variax with ghost saddles?

Can I plug the pickup saddles from my Variax Line 6 into the ghost preamp?

Can I file my ghost saddle to achieve a different dimensions or string spacing?

Do you make a MIDI bridge for 7 string guitars?

Can you install the ghost saddles without a pre-amp?

GHOST SADDLES FAQ

How does the ghost Acousti-Phonic sound?

Does the Acoust-Phonic "color" my mag sound as it passes through?

How big is the Acousti-Phonic?

Can I add a tone control to the ghost system?

How do I wire a stacked pot to the ghost system?

Can I use a standard 3-way toggle and push/pull pot with the Ghost Acousti-Phonic basic kit for my guitar?

Can the ghost system be used with other manufacturer's components?

Can I install the ghost Acousti-Phonic on a guitar that is string-thru-body?

Can I wire the Acousti-Phonic with two output jacks instead of one stereo jack?

If I plug a mono cable into the stereo jack does the guitar still function normally as it would prior to installing the Acousti-Phonic preamp?

This Acousti-Phonic is described as "18V compatible". Does that mean I need to put two 9v batteries inside my guitar?

Can I keep the output jack that came with my guitar, instead of using the one that came with the Acousti-Phonic?

Wouldn't it be better to control the mag/acoustic mix with a Blend Pot?

How does the Acousti-Phonic change my electric sound when I mix the two signals together?

Ghost Acousti-Phonic - What does it sound like?

Will the Acousti-Phonic work with more than six strings?

Can I install the Acousti-Phonic without a battery if I'm installing the Hexpander too?

Where do I connect my magnetic pickups to the Acousti-Phonic?

How long does the battery last? Can I just play my magnetic pickups if the Acousti-Phonic battery dies?

Can I use the Mid/Dark switch also to blend?

ACOUSTI-PHONIC FAQ

PICKUP SYSTEMS

Open Back Bushing-Large Actual Size Templeates & MeasurementsUpdated 2 hours ago