SKU: 34262265252

Martin Custom Shop OM Auditorium Acoustic Guitar, 18-Style, Flamed Koa Top/Back & Sides, Natural

Sale price$3060.90 Regular price$3401.00
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Description

Martin Custom Shop OM Auditorium Acoustic Guitar, 18-Style, Flamed Koa Top/Back & Sides, NaturalBeing one of a handful of Martin Custom Expert dealers, we have the privilege of building beautiful Martin Custom Shop pieces to spec, like this Martin Custom Shop OM with an Auditorium body made from flamed Koa with a natural finish. With a body that's sized the same as a 000 Martin at 15 inches, slightly smaller than the Dreadnought, the Orchestra Model (OM) features a slightly longer scale length of 25. 4 inches, plus a slightly wider neck that

Being one of a handful of Martin Custom Expert dealers, we have the privilege of building beautiful Martin Custom Shop pieces to spec, like this Martin Custom Shop OM with an Auditorium body made from flamed Koa with a natural finish. 

With a body that's sized the same as a 000 Martin at 15 inches, slightly smaller than the Dreadnought, the Orchestra Model (OM) features a slightly longer scale length of 25.4 inches, plus a slightly wider neck that gives it a reputation of being loved for fingerpicking styles, while also still boasting a moderate amount of projection and being notoriously comfortable to play. The "Orchestra Model" moniker is in relation to its projection, as the first versions that appeared in the 1930s were made to be able to offer enough projection to compete with a live orchestra, and still be heard with clarity. The OM Auditorium, introduced in the early 2000s, offers a slightly deeper body that helps with projection even further than the OM.

A trip to the Martin production factory led to us choosing to create this OM Auditorium featuring a top, back and sides all cut from gorgeous flamed Koa and finished in a natural finish that does very little to get in the way of the wood figuring. The top and back both offer a vertical grain that makes this guitar a visual joy, with the rear boasting two bookmatched halves that have no purfling between them. Under the top, Scalloped spruce 1/4" bracing helps this guitar project with clarity, structurally supporting the top while allowing it to vibrate freely at the same time. 

Nestled comfortably within the Koa body is a select hardwood neck, precisely shaped to Martin's Modified V profile, that sits deep in the palm and is a good fit for players who like their fingers to be able to reach all parts of the fingerboard with ease. A sleek black ebony fingerboard tops off the neck. This fingerboard features twenty frets, and dot inlays. The ebony's grain is tight, and its color is a dark contrast to the color of the Koa body. 

The Old Style 18 appointments found on this Martin include its rosette made of maple fiber, and a decal inlay on its headstock.

Most new Martin Guitars ship with the original endpin not installed, if you'd like us to install one for you before shipping, please let us know and we'd be happy to. 

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  • Timeless OM Playability, Modern Projection
  • Old Style 13 Inlays
  • Golden Era Scalloped 1/4" Spruce X-Bracing
  • 18-Style Appointments
  • Natural Finish
  • Flamed Koa Top, Back and Sides
  • Modified V Neck Profile
  • Black Ebony Fingerboard
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34262265252

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4.5 ★★★★★
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A regular Joe
West Palm Beach, US
★★★★★ 5
Nice Filter Wrench for my Volvo V70XC!
Size: 86mm x 16
I was needing a filter wrench for my 2001 Volvo V70XC and couldn't find anything that fit from the local auto parts stores. Not knowing what to expect, I took a chance on this one since most of the reviews were 5 star and the price was exceptional. When I received it, I was quite pleased with the construction and finish. I have a brand new oil filter housing for my Volvo (since the one currently on my car is chewed up from the former owner using slip-jaw pliers or something on it) and the fit is perfect! I have worked as a mechanic my whole life (aircraft & automotive), and spent a couple of years as a technician at an automotive dealership and I can say that the tool looks like it is designed for heavy-duty use. The stamped steel housing is thicker than those found in local auto parts stores and the drive adapter has a thick arc welded bead along the inside of the tool. So, it appears to be made to hold up to some fairly heavy torque. Although the product description states that it is 1/2", the drive adapter is actually made for direct attachment to a 3/8" drive. Perhaps this error stems from the fact that they offer a much larger wrench (118-131mm) and this is a more accurate description of their other offerings. The 3/8" drive adapter works perfectly and a 21mm socket fits nicely on the external hex. Fits with SAE sizes are a mixed bag, though. I was able to attach a 13/16" 12-pt. box-end wrench, but not the opposing open-end. A similarly sized 13/16" 6-pt. socket was extremely tight, so I wouldn't recommend this size and would just go with the 21mm if you had to use the external hex. Otherwise, just use the 3/8" drive adapter for easiest use of this tool. The adapter also incorporates ball detents on all four sides of the internal 3/8" drive, so your ratchet or extension won't easily fall off while in use. Since this tool is made for oil filter removal & installation, I'm sure that it will deliver as promised. I'll post an update after my next oil change and I get a chance to use it and install the new filter housing I have.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2014
C
Verified Purchase
Charles Szatkowski
Waukegan, US
★★★★★ 5
Makes the job easy
Size: 88.5mm x 16
Worked well for removing and installing the oil filter housing.
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Reviewed in the United States on April 17, 2026
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Verified Purchase
Lynn Carbin
Birmingham, US
★★★★★ 5
Great tool
Size: 88.5mm x 16
Fit perfectly. Great tool. Made changing oil fast and easy .
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Reviewed in the United States on November 28, 2025
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Verified Purchase
Humble Servant
Omaha, US
★★★★★ 4
very good tool fits PL14006 just right
Size: 76mm x 14
This fit my PL14006 oil filter.
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Reviewed in the United States on February 7, 2026
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Verified Purchase
Person of Knowledge
Boise, US
★★★★★ 5
The Perfect Tool - Life is Short So Just Buy It.
Size: 88mm x 15
So. Life is too short to struggle with little demons and other inconveniences. I change oil in all my cars, trucks, and SUVs. One of my cars is a V6 Hyundai and the filter cartridge is inside a housing that is sometimes more than a tad inconvenient to loosen and screw back in place. My regular filter removal tools including strap style as well as a three arm gripper type just did not perform very well. I saw this thing, ordered it, and man...it is perfect. The metal top allows a wrench ( spanner) or a socket wrench to be used. I have a fancy Snapon torque wrench which I can also use just to be fancy. In any case removing and re-securing the filter housing on the Hyundai V6 is now a breeze. The cap wrench itself is solid and very well constructed Five stars and count me in as impressed. Well done CTA Tools !!!
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Reviewed in the United States on February 6, 2026

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