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Titanium Nib Unit #6

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)

¥5,428 ¥6,513Price range: ¥5,428 through ¥6,513

Kanwrite Titanium Nibs – Precision Meets Expressive Flex

Kanwrite Titanium Nibs are engineered for writers who seek the perfect balance between strength, smoothness, and controlled flexibility. Crafted from high-quality titanium and finished in an elegant matte tone, these nibs deliver a distinctive writing feel—softer than steel, resilient under pressure, and exceptionally responsive across writing styles.

Designed as a complete Titanium Nib Unit #6, they are easy to install and highly versatile, making them an ideal upgrade or replacement for a wide range of fountain pens.

Key Features & Specifications

  • Nib Material: Titanium
    Offers excellent corrosion resistance, durability, and a uniquely springy writing response.

  • Nib Finish: Titanium Matte
    A refined, understated finish that complements both modern and classic pen designs.

  • Nib Size: #6
    Industry-standard size for broad compatibility and ease of interchangeability.

  • Tip Sizes Available:

    • Extra Extra Extra Fine (EEEF) – 0.4 mm
    • Extra Extra Fine (EEF) – 0.45 mm
    • Extra Fine (EF) – 0.5 mm
    • Fine (F) – 0.6 mm
    • Medium (M) – 0.75 mm
  • Nib Cuts (Writing Styles):

    • Regular: Smooth, consistent line for everyday writing

    • Soft Regular: Slight bounce for added comfort and subtle line variation

    • Flex: Expressive stroke variation with controlled pressure

    • Ultra Flex: Maximum line variation for calligraphy and artistic writing

  • Nib Housing: Plastic
    Lightweight and reliable for everyday use.

  • Nib Feed Options:

    • ABS Plastic feeder (For Desire, Jowo & Bock)

    • Ebonite Feeder (Without nipple, For Heritage & Legacy)

    • Ebonite C-C (With nipple, Cartridge–Converter compatible) feeder for enhanced ink flow and responsiveness (For Desire, Jowo & Bock)

Compatibility & Interchangeability

Kanwrite Titanium Nib Units are compatible with:

  • Kanwrite Desire

  • Kanwrite Heritage / Legacy 

  • JoWo-compatible pens

  • Bock-compatible pens

This wide compatibility makes them a versatile choice for pen enthusiasts, collectors, and professionals looking to customize their writing experience.

Ideal For

  • Fountain pen users upgrading from steel to premium titanium

  • Writers who want durability with a softer, more responsive feel

  • Calligraphers and artists seeking flex and ultra-flex performance

  • Pen makers and customizers needing a reliable, interchangeable #6 nib unit

Kanwrite Titanium Nibs bring together modern materials, thoughtful engineering, and expressive writing performance—crafted for those who value both precision and personality in every stroke.

FP Model Compatibility/ Feeder material

Desire/ABS Plastic, Desire/Ebonite C-C, Heritage & Legacy/Ebonite, Jowo Compatible/ABS Plastic, Bock Compatible/ABS Plastic, Jowo Compatible/Ebonite C-C, Bock Compatible/Ebonite C-C

Tip size

Extra Extra Extra Fine (0.40mm), Extra Extra Fine (0.45mm), Extra Fine (0.5mm), Fine (0.6mm), Medium (0.75mm)

Cut type

Regular, Soft Regular, Flex, Ultra Flex

2 reviews for Titanium Nib Unit #6

  1. Rated 5 out of 5

    svenvebb (verified owner)

    Excellent nibs!
    I put them in some pens that have Jowo housings, and they write wet thanks to the ebonite feeds. The feel of titanium is a unique experience. Definitely recommend.

  2. Rated 5 out of 5

    Sebass (verified owner)

    Awesome nib! I got the titanium ultra flex in EEEF. The nib is smooth and flexible and the line variation is very apparent. Ink flow is nice and keeps up thanks to the ebonite feed. If you make them with the ultra flex v2 cutouts, let me know, I would love an even softer version. With the v1 cutouts they are not softer than the stainless steel v2, but they do provide more line variation.

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