12PCS Long Nib Marker Pen, Waterproof 20 mm Long Head Deep Hole Marker, Colorful Construction Marking Carpenter for Permanent Marking of Hard to Reach Areas

• [Long Nib Marker]: This long nib marker pen features a slim 1 mm diameter, 20 mm length tip that gets into tight gaps with ease. Ideal for precise marking during cabinet installation, electrical work, joinery and general assembly tasks. A practical alternative to bulky tools such as a marxman marking tool or marksman marking tool.
• [Reliable Ink]: Our deep hole markers are built with a durable PP barrel and a carbon steel nib for long-lasting performance. The ink uses a specialised oil-based formula that is water-resistant, permanent, quick-drying and smudge-proof. It holds its colour well and has a low odour, making it suitable for both professional and everyday use.
• [Withstand Everyday Use]: Each deep hole marker is made from durable materials and features a 1 mm tip with a large-capacity barrel. The reinforced nib resists bending or collapsing, ensuring consistent marking even with frequent use. The cap seals tightly to prevent the ink from drying out, helping the pen stay usable for longer.
• [Multiple Surfaces]: These long tip marker pens perform consistently on wood, metal, glass, plastic, ceramic, stone, cardboard and more. Whether you’re laying out a kitchen, fitting a wall socket, marking steel rails or noting cut lines on timber, the ink adheres cleanly. A versatile choice for home renovation, hardware work, automotive tasks, industrial processing and craft marking.
• [Multi-Colour Set]: You get a value-packed set featuring multiple colours for quick visual sorting—ideal when you need different markings for different steps or materials. With enough quantity for long-term use, this marker pen set is easy to share with teammates and keeps your toolbox ready for any project.

Quantity: 12 PCS (4 colours: Black ×3, Red ×3, Blue ×3, Green ×3) Tip Size: 5 mm wide tip; 20 mm extra-long nib Pen Size: Approx. 13.8 × 1.1 cm Material: Fiber pen tip Ink Type: Oil-based ink Colour Options: Black / Red / Blue / Green Features: Durable, anti-wear nib, large-capacity ink reservoir, tight-seal cap Compatible Surfaces: Wood, metal, glass, plastic, pipes, tiles, plasterboard, stone