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Ko-Axis™ Rail Pen - Timascus™ Edition

$1,295.00 Regular price
Unit price


This exclusive Timascus™ special edition Ko-Axis Rail Pen™ is a one-of-a-kind collector's edition and is only available from TEC Accessories. Similar in function to our other Ko-Axis rail pen models, this version is uniquely manufactured as the two body components are machined from Titanium Damascus, or Timascus. This exotic material is created by laminating different alloys of titanium using extreme heat and pressure. The material is forged, twisted and folded to expose multiple layers and complex patterns. After carefully machining this material into the Ko-Axis body components, the parts are then put through a week long polishing process to remove sharp edges and to enhance the appearance of the final step. This final process requires the parts to be artistically heated to bring out the various colors of the alloys, resulting in the "wood grain metal" effect. This writing instrument is then meticulously hand assembled and tested to the highest standards, resulting in a pen like no other.

Each one is unique, as no two are exactly alike. The various colors and grain patterns are always different, so these photos represent just an example of what each individual pen may look like. This extremely limited, custom crafted edition of TEC's very successful rail pen may not always be available. Please check back regularly if it is currently out of stock.


The Ko-Axis™ Rail Pen

Abandoning the cylindrical shape of a traditional pen, the Ko-Axis™ Rail Pen leverages the benefits of a flat, wide, rectangular geometry for unparalleled writing comfort and ultra-low profile carry.

Rather than cramping your fingers around a thin cylindrical shaft, you can embrace your writing instrument in a more natural way that provides long term comfort with less tension on your fingers. The 4-1/2" length is optimized to deliver a fluid writing experience in your hand, yet be incredibly compact for convenient everyday carry.

The magnetic twin-rail mechanism used to extend and retract the ink refill eliminates the need for a separate cap. Combined with an instant, no-tool refill replacement method, the Ko-Axis™ Rail Pen will always be your pen of choice. Its elegance, comfort, and simplicity will make you wonder why this never happened sooner.

Key Features

  • Flat geometry: The rectangular shape provides comfort during long writing sessions
  • 6 mm low-profile body (less than 1/4" thick) for discrete storage when carried or clipped
  • The perfect pen to accompany journals, notebooks, diaries, etc.
  • The embedded micro socket provides an "Instant", no hassle refill replacement that does not require tools: pull-to-remove/push-to-insert
  • Accepts a wide variety of commonly available D1 stylus refills, including Fisher pressurized refills (in case you want to write upside-down)
  • Unique, twin-rail skeletonized body is strong, lightweight and will make heads turn
  • Magnetic actuation and retention mechanism
  • Balanced design for the ultimate writing experience
  • No possibility of accidental ink retraction during use
  • Flat, anti-roll design stays where you put it
  • Symmetrical profile allows for identical writing comfort for both right and left hand usage
  • Assembled from 24 individual, custom machined and critically selected components, to ensure a high quality, bulletproof pen that will last a lifetime

What you get:

  • Ko-Axis™ Rail Pen
  • Integrated pocket clip
  • Premium Monteverde D1 ink refill
  • Packaged in an engraved walnut gift box, including a layered acrylic carry case and Moleskine notebook. All suitable for gifting
  • Refill Actuation: Magnetic Push/Pull
  • Refill Replacement: Pull-to-remove, Push-to-insert
  • Weight: 56 grams (2 oz)
  • Size: 6 mm x 109 mm x 22 mm (.236" x 4.29" x 0.866")
  • Height with clip: approximately 8.77 mm (0.35”)
  • Materials:
    • Body: Titanium Damascus
    • Guide rails: Solid stainless steel precision rod
    • Slider: QAl 9-4 aluminum bronze, a durable bearing material known for its low coefficient of friction. This provides ultra smooth travel of the slider actuation mechanism as well as the perfect weight and balance
    • Pocket clip: 301 stainless spring steel
    • N52 Neodymium magnets with the highest magnetic strength/size ratio available
  • Finish: All titanium body components are micro-polished to a fine uniform finish to enhance the Titanium Damascus layers and colors

The Ko-Axis Rail Pen is manufactured from a variety of materials to provide optimized functionality as well as a distinctive aesthetic. All components used in the production of this writing instrument go through a series of finishing processes (model dependent) including tumbling, polishing, anodizing and our exclusive Black Diamond coating.

An integral component of every Ko-Axis Rail Pen is the “slider”, used to extend and retract the refill. This critical part is made from QAl 9-4 aluminum bronze, a durable bearing material known for its low coefficient of friction. This provides ultra-smooth travel of the slider actuation mechanism, and also delivers the perfect weight and balance for the entire pen.

It should be noted however that aluminum bronze is considered a “living finish”. Similar to brass and copper, when exposed to the elements it will have a tendency to oxidize over time. This oxidation, also called patina, can be either beautiful or unappealing depending upon your personal preference. If you prefer the look of patina, simply use your Ko-Axis as intended and over time the slider will develop its own unique appearance. However if you do not prefer this type of finish, this can easily be corrected. There are many over the counter polishes or homemade solutions that can be used, but the most common is a polish called Brasso. Simply use a very small amount on a soft cloth and wipe down the aluminum bronze LIGHTLY using a circular motion. You do not need to apply pressure, it doesn’t take much effort to clean the material. This will restore the finish to its original factory finish.

The following dimensions are in millimeters [inches]:


Form Factor

We've designed the Ko-Axis™ with a purpose-built, distinctive shape, sparing no detail. The comfort and ergonomics that were considered in the design phase are unparalleled, resulting in a truly unique writing experience. These features create an aesthetic that turns heads. All of these features have been packed into a pen so thin that it easily hides in any notebook. Be warned: once you write with the Ko-Axis™, you will never go back to a conventional pen.


Upon closer inspection of the Ko-Axis™ Rail Pen, you will discover that the aluminum bronze grip slider contains the ink cartridge. By implementing this clever design, it is impossible for the pen to accidentally retract while writing. The ink refill is always present when you need it and never when you don't. We have painstakingly integrated eight ultra-strong neodymium magnets into the end stop positions to ensure perfect engagement, and eliminate any potential for movement of the mechanism while writing.

Writing Experience

The Ko-axis™ isn’t just a beautiful writing instrument, it transforms the act of writing into a wonderful experience. From the first time you extend the ink refill, you’re hooked. The rectangular shape of the Ko-axis™ rests gently in the crease of your hand and lands comfortably in your thumb-and-finger pinch. The shallow divot in the finely polished aluminum bronze offers the perfect spot for your pointer to land every time. The weight distribution of the pen was carefully calculated to rest in your hand without applying any torque to your fingers that would tire your hand in a late-night writing session. The Aluminum Edition is the featherlight member of the Ko-Axis™ family. The aluminum body allows the pen to float effortlessly across page after page. The Titanium Edition has 25% more mass than its aluminum brother, providing a solid and comfortable resilience that will last a lifetime. Every titanium model affords a rock-solid, stable action and exudes confidence in every word it writes.


The Ko-Axis™ Rail Pen includes a Monteverde D1/Multipen refill, which we think is the best refill on the planet. This medium point, black ink refill is the perfect way to experience everything the Ko-Axis™ has to offer. It features Soft Roll ink technology which is a low viscosity ink for the smoothest writing experience, with a high quality nickel silver tube and a Swiss tip.

However, any D1 style refill will work in the Ko-Axis™, including but not limited to the following:

  • Schmidt 635 Mini D1
  • Lamy Mini Ballpoint Refill M21
  • Kaweco D1
  • Monteverde D1/Multipen
  • Parker D1
  • Zebra Sharbo X Gel Ink Multi Pen/D1
  • Zebra ESB-0.7 Emulsion Ink Ballpoint Pen Refill - D1
  • Ohto R-4C7NP Needle-Point D1
  • Rotring D1 Multi Pen

TEC Accessories offers a 30 day no-questions-asked return policy on all of our products. If you are not satisfied with your purchase, for any reason, contact us to arrange a return/refund. In addition, all products carry a 90 day warranty against defects in materials or workmanship. Please contact us if you have any problem with your purchase that requires attention, and we will promptly make any necessary corrections.

Shipping Times

PLEASE NOTE: Due to the current logistics delays, shipping times may take longer than expected. This is especially true for International shipments, where delivery times can take weeks longer than usual. This is beyond our control, and we ask that you please be patient with expected deliveries until shipping companies get back to a more "normal" schedule.

We make every effort to process orders within one working day, however there may be slight delays depending upon the number of orders we receive, holiday periods and available staffing resources. Typically we will process all orders within no more than 2 working days.

Shipping times (from the time the package is dropped off at the carrier) will vary depending upon the carrier, method of shipment and destination. For example USPS Domestic First Class Mail should take between 2-3 days, but we have seen instances of 5-7 days. Domestic Priority Mail should take 1-2 days, but can take anywhere from 1-4 days. Domestic Express Mail should take one day, but that is only if your processed order is delivered to the post office before the cutoff time (typically 12:00 noon). Also keep in mind that weather and travel distance can have an effect on delivery times.

International shipments have even more variables that must be considered. A package sent by USPS First Class International can take anywhere from 1-3 weeks, sometimes longer depending upon the country. International shipments have the potential of being delayed by Customs, as well as having additional taxes or fees levied on a package. These are out of our control, and we advise that you become familiar with your specific country's shipping regulations to understand the impact to your shipment.