PILOT Hi-Tec C Coleto Refill, 0.3mm

The PILOT Hi-Tec C Coleto Refill is the heart of the most versatile multi-pen system in the world. Engineered with the legendary needle-point technology that made the original Hi-Tec C a global icon, the 0.3mm ultra-fine tip is designed for those who work in miniature. Whether you are filling in the tiny grids of a Hobonichi, annotating margins, or creating high-density technical drawings, these refills offer a sharp, consistent line that never feels "scratchy."Integrated Key Features & Technical SpecificationsUltra-Fine 0.3mm Needle Point: This precision-engineered stainless steel tip is designed to deliver a razor-sharp line. The needle-point design provides a clear view of the paper as you write, making it the gold standard for high-accuracy tasks and incredibly small handwriting.Vibrant Biopolymer Gel Ink: The refills use Pilot’s signature gel ink formula, which is designed to prevent feathering and provide rich, saturated color. The ink is smooth-flowing, ensuring a skip-free experience even with such a fine tip.Instant Color Identification: Each refill comes with its own integrated slide lever at the top. When installed in a Coleto body, this lever acts as the "clicker" and provides an immediate visual indicator of the ink color, allowing for lightning-fast color changes.Rapid-Dry & Smudge-Resistant: The ink is formulated to set quickly on the page. This is a critical feature for users of slick, non-absorbent Japanese papers, as it significantly reduces the risk of smearing during fast-paced note-taking.Modular Compatibility: These refills are $126\text{ mm}$ in length and are exclusively designed to fit any PILOT Hi-Tec C Coleto body (including 2, 3, 4, and 5-slot versions). The "top-loading" design allows you to swap colors in seconds.Wide Range of Archival Colors: Available in over 15 shades—from classic professional black and blue to vibrant apricot orange and apple green—allowing you to curate a palette that perfectly matches your organizational style.