
TUL Gel Pen Fine Point (0.5mm) – Precision Writing Instrument
Our TUL fine point gel pen is engineered for writers who demand precision without sacrificing comfort. The 0.5mm tungsten carbide tip delivers ultra-fine lines ideal for detailed note-taking, planners, margin annotations, and forms requiring small handwriting.





Precision specs for the 0.5mm tip





Ink technology and line quality
The gel ink formula in our fine point pen combines pigment particles suspended in a water-based gel that maintains consistent viscosity across temperature ranges. This chemistry prevents the hard starts and skipping common in ballpoint pens, while avoiding the feathering that plagues many felt-tip markers on standard copy paper.

Grip ergonomics and barrel balance
We molded the rubber grip zone with a subtle triangular profile that guides finger placement without forcing a rigid hold. The grip diameter measures 10mm at its widest point—wide enough to prevent pinching, narrow enough for writers with smaller hands to maintain control.
More precision writing tools from TUL






Common questions about the TUL fine point gel pen
The TUL fine point gel pen produces a 0.5mm line width. This measurement refers to the tungsten carbide ball diameter at the tip, which translates to ultra-fine lines suitable for detailed writing, planners, and forms with small boxes. The line remains consistent across different writing pressures thanks to the low-viscosity gel ink formulation.
The gel ink in our fine point pen does not bleed through most 20 to 24 pound copy paper or standard notebook stock. You may see very slight ghosting on the reverse side with extremely lightweight paper below 18 pounds, such as airmail stationery. On typical office and school paper, the 0.5mm line stays crisp without feathering or seeping through to the back page.
Unscrew the barrel at the seam near the grip section to separate the two halves. Pull the depleted gel refill straight out from the retractor mechanism at the back of the pen. Insert a new TUL gel refill—either 0.5mm or 0.7mm depending on your preference—into the same retractor slot until you hear or feel it click into place. Screw the barrel halves back together and test the click-action to ensure the tip extends and retracts smoothly.
Yes, the gel ink dries in under one second on uncoated paper and two to three seconds on coated stock, which significantly reduces smudging for left-handed writers who drag their hand across fresh writing. Many left-handed customers report little to no ink transfer on their palm or side of the hand when using this pen at normal writing speeds.
The TUL gel pen writes cleanly on glossy presentation paper, matte cardstock, and even some laminated surfaces. On non-porous or heavily coated materials, allow about ten seconds of dry time before handling to ensure permanent adhesion. The gel ink adheres better to coated surfaces than traditional ballpoint ink, which tends to bead up or skip on slick finishes.
We offer the fine point gel pen in black, blue, red, green, and purple gel ink. All five colors use the same archival-quality, fade-resistant formulation and are available individually or as a multi-color set. Each color maintains the same 0.5mm line width and writing performance characteristics.
A standard TUL gel refill writes approximately 800 meters of continuous line, which typically translates to 60 to 80 pages of handwritten notes depending on your writing size, pressure, and spacing. For reference, if you write three to four pages per day, a single refill should last four to six weeks before requiring replacement.






