The DHM (hole marker) is the ideal waterproof marker for precise and durable marking of holes, surfaces, and labeling in hard-to-reach areas. It features a fine stainless steel tip of 25 mm (1 inch). The spherical tip allows for precise and unfading marking – perfect for marking holes and inaccessible areas on dry surfaces. The ink is waterproof, dries quickly, and adheres reliably to a wide range of surfaces, such as glass, metal, stone, and even plastic, without smudging. The fine line means that the DHM marker is also an excellent choice for drawing or writing.