Fenix T6 Refill Schmidt Mine 635 M — Blue

The Mine 635 M by Schmidt Technology is the standard D1 replacement cartridge to ISO 12757, designed for the Fenix T6 and for any other pen compatible with the D1 format. With a 0.7 mm tip and blue ink, it delivers smooth, precise writing in all everyday and professional conditions.

The cartridge measures 68 mm in length and 2 mm in diameter: dimensions that comply precisely with the D1 standard, meaning replacement requires no adaptation and no force on the pen's mechanism. Schmidt Technology's German manufacturing ensures consistent ink quality with an even flow, even after periods of inactivity.

Anyone carrying a tactical pen like the Fenix T6 into the field does so because they need to take notes in demanding conditions: varying temperatures, moisture, sudden movements. Having a spare refill to hand is not a secondary accessory — it is the condition that keeps the pen useful over the long term. The genuine Schmidt cartridge maintains the same writing performance as the factory-fitted original, with no compromise in ink delivery or tip longevity.

Key features

• D1 format to ISO 12757: compatible with the Fenix T6 and any pen that accepts this standard, with no modifications.
• 0.7 mm tip for precise, legible writing even in tight spaces or on narrow-ruled forms.
• Made in Germany by Schmidt Technology, the benchmark supplier for professional-grade refills.
• Blue ink with stable flow: does not dry out or clog after extended periods of non-use.
• Compact dimensions — 68x2 mm — allowing it to be carried as a spare without taking up useful space.

In the box

• 1 Schmidt Mine 635 M refill (blue)