The Pica Ink Deep Hole Marker is a specialized tool designed for marking hard-to-reach spots, such as deep drill holes. Its extended stainless steel tip allows for precise marking in tight spaces. The marker features a practical quiver cap with a reinforced clip, enabling secure one-handed operation and easy attachment to pockets or tool belts. The permanent alcohol-based ink is instantly water and abrasion-resistant, suitable for marking on almost all dry surfaces, including metal, plastic, glass, tiles, ceramics, processed wood, laminate, stone, concrete, raw wood (dry), and tire rubber (dry). The ink can be removed from smooth surfaces using alcohol or other suitable solvents. The self-adjusting, patented stainless steel telescopic tip utilizes the full 7mm length of the fiber nib, providing up to three times more marking capacity compared to competitors' 2mm nibs. The nib can be twisted 180° multiple times to extend its lifespan.