Multi-Purpose 20mm Long Head Deep Hole Marker – Professional Waterproof Pen for Woodworking & Metalworking

Achieve precision in hard-to-reach places with the Special Purpose Long Tip Marker, the ultimate tool for trade professionals and DIY enthusiasts alike. Featuring an extra-long 20mm nib, this deep hole marker pen is specifically designed for marking through drill holes in bookshelves, lamp holders, or hardware. Its permanent, waterproof ink adheres seamlessly to metal, wood, plastic, and glass, making it an essential addition to any woodworking tool kit or industrial production line.

Key Features

• Extended 20mm Reach: The slim, long-nose tip allows for accurate marking deep within perforations and narrow gaps where standard markers cannot reach.

• Quick-Drying & Waterproof: High-quality oil-based ink resists smudging and water, ensuring your marks remain visible on various surfaces during intense labor.

• Precision Line Width: Delivers a consistent 0.7–1.0mm line, providing clear and fine deep marks for drilling and assembly.

• Industrial Strength Versatility: Perfect for home improvement, automobile manufacturing, hardware processing, and deep-hole marking in car manufacturing.

• Four Professional Colors: Available in Black, Red, Blue, and White to provide high contrast on different material colors.

Specifications

• Product Name: Special Purpose Marker (Long Tip Marker).

• Model Number: GN906.

• Tip Length: 20mm.

• Line Amplitude: 0.7–1.0mm.

• Ink Type: Oil-based, permanent.

• Quantity: 12 sticks per box.

📏 Technical Guide