Mistillion 8 Pack Long Head Deep Hole Marker Pens, 20mm Extra Fine Tip Waterproof Permanent Markers, 4 Colours for Hard-to-Reach Areas Metal Wood Glass Carpentry Industrial Use

• 📏 20mm Extended Nib for Hard-to-Reach Precision MarkingOur Mistillion long head marker pens feature a specialist 20mm extra-long nib, engineered exclusively for accurate marking in confined, hard-to-access spaces that standard markers cannot reach. Perfect for marking through deep drilled holes, narrow gaps, tight corners and complex angles, it delivers consistent precision for carpentry joinery, automotive repairs, industrial fabrication and detailed construction tasks.
• 🌊 Waterproof Quick-Dry Permanent Ink for Multi-Surface UseEach marker is filled with high-performance permanent ink that is fully waterproof, smudge-proof and fast-drying, delivering crisp, long-lasting marks that resist fading over time. The acid-free ink adheres seamlessly to a wide range of surfaces including metal, wood, glass, plastic, ceramic and stone, making it suitable for both indoor and outdoor projects with reliable, consistent results.
• 🛡️ Robust Industrial-Grade PP Construction for Tough EnvironmentsThese deep hole markers are built with a heavy-duty polypropylene (PP) barrel and reinforced nib housing, designed to withstand harsh working conditions on job sites and in workshops. The durable, impact-resistant structure ensures long-term reliability, making them an essential addition to any professional tradesperson or DIY enthusiast’s toolkit.
• 🎨 8-Piece Assorted Colour Set for Flexible Organised MarkingThis set includes 8 extra-fine tip marker pens across 4 versatile colours: black, red, blue and green (2 pens per colour), providing flexible options for colour-coded marking, labelling and project organisation. Whether for technical measurements, material identification or detailed craft work, these multi-colour markers deliver clear, legible lines for every task.
• 🏗️ Ultra-Fine Tip for Versatile Professional & DIY ApplicationsWith a 0.3mm extra-fine point, these markers deliver sharp, accurate thin-line markings with total control, ideal for high-precision tracing, outlining and detailed labelling. They are perfectly suited for professional use in home renovation, hardware processing, automobile manufacturing, industrial operations, as well as general DIY, crafting and hobby projects.

Mistillion 8 Pack Long Head Deep Hole Marker Pens are expertly engineered to deliver unbeatable precision, long-lasting performance and reliable marking in even the most hard-to-reach spaces, designed for professional tradespeople and dedicated DIY enthusiasts alike. Full Product Specifications Brand: Mistillion Ink Colours: Black, Red, Blue, Green (2 pens per colour) Total Quantity: 8 Marker Pens Per Pack Nib Length: 20mm Extended Long Head Tip Type: Extra Fine Point Line Width: 0.3mm Barrel Material: Heavy-Duty Polypropylene (PP) Ink Properties: Waterproof, Smudge-Proof, Quick-Drying, Permanent, Acid-Free Water Resistance Level: Fully Waterproof Grip Type: Smooth Ergonomic Grip Recommended Surfaces: Metal, Wood, Glass, Plastic, Ceramic, Stone Recommended Uses: Labelling, Marking, Carpentry, Automotive Repairs, Industrial Fabrication, Crafting, DIY Projects Target Audience: Adults Only Item Weight: 61.7 Grams Unit Count: 1 Pack Country of Origin: China Product Warranty: No Warranty Precision Engineered for Hard-to-Access Spaces At the core of these markers is a specialist 20mm extra-long nib, purpose-built to reach deep into drilled holes, narrow gaps, tight corners and confined spaces that standard marker pens simply cannot access. This extended design delivers consistent, accurate marking through complex angles and tight openings, making it the perfect tool for carpenters, mechanics, construction workers, joiners and fabricators who require precision in every mark. The 0.3mm extra-fine tip produces sharp, crisp, thin lines with total control, ideal for detailed tracing, technical outlining, and precise labelling of materials and components. High-Performance Permanent Ink Each marker is filled with premium acid-free permanent ink, formulated to be fully waterproof, smudge-proof and quick-drying. The ink dries in seconds to prevent smudging and smearing, even on smooth, non-porous surfaces, and delivers long-lasting, fade-resistant marks that stay legible in harsh working conditions, including outdoor exposure, moisture and general wear and tear. It adheres seamlessly to a wide range of materials, from metal, wood and glass to plastic, ceramic and stone, making it incredibly versatile for a huge range of projects and applications. Industrial-Grade Durable Construction Built to withstand the rigours of daily use on job sites and in busy workshops, these markers feature a robust, impact-resistant polypropylene (PP) barrel and reinforced nib housing. The heavy-duty construction protects the pen from drops, bumps and rough handling, ensuring consistent performance and long-term reliability even in tough industrial environments. The smooth ergonomic barrel fits comfortably in the hand for extended use, reducing hand fatigue during long marking and fabrication tasks. Versatile Multi-Use Applications These deep hole markers are an essential addition to any toolkit, with a wide range of professional and DIY applications. They are perfectly suited for carpentry and joinery work, automotive repairs and modifications, home renovation projects, hardware processing, industrial manufacturing, construction site marking, as well as crafting, model making and general hobby projects. The 4-colour set allows for simple colour-coded marking and organisation, making it easy to differentiate between measurements, materials and project stages at a glance. Critical Safety Information & Usage Notes SAFETY WARNING: This product may cause an allergic skin reaction. Avoid prolonged skin contact with the ink. If skin irritation occurs, wash the affected area immediately with soap and water and seek medical advice if symptoms persist. This product is designed for adult use only. Please keep this product out of the reach of children and pets at all times. Store the markers in a cool, dry place, with the cap securely fastened when not in use, to prevent the ink from drying out. Ensure the surface is clean and dry before marking for optimal ink adhesion and legibility.