15 Pieces Deep Hole Markers, 20mm for Hard-to-Reach Markings, Fine Tip Carpenter's Markers, Waterproof Permanent Markers for Wood, Metal, Concrete, and Plastic (5 Black, 5 Red, 5 Blue)

【20mm Tip for Hard-to-Reach Markings】Designed with a 20mm fine tip, these Deep Hole Markers are specially suited for deep holes and tight spaces. They offer precise and clean marking, ideal for confined areas where standard markers struggle to reach, optimizing your work efficiency.
【Durable Materials & Waterproof Permanent Ink】Made with a robust casing and a wear-resistant tip, these Carpenter Markers ensure long-lasting use. The quick-drying ink prevents smudging, remains visible on various surfaces, and is water-resistant with no unpleasant odor, meeting the needs of durable marking.
【15-Piece Set with 3 Balanced Colors】The set includes 15 permanent markers, divided into 5 black, 5 red, and 5 blue. This balanced distribution makes it easy to differentiate between brands according to your needs, suitable for professional or home use, sufficient for your long-term use.
【Versatile on Various Materials】Compatible with wood, metal, concrete, plastic, and other common surfaces, these permanent markers are suitable for the woodworking industry, decoration, DIY projects, automotive manufacturing, and everyday use, offering exceptional versatility.
【Convenient Design with Built-in Clip】Each marker is equipped with a built-in clip, allowing you to easily attach it to your work clothes or notebook to keep it always within reach. Please replace the cap after use to preserve ink performance and extend the product's lifespan.