Deep-Hole Extended Precision Markers

Engineered for the specialized requirements of industrial woodworking, metal fabrication, and hardware installation, the Professional Deep-Hole Extended Precision Markers provide technical marking capabilities where standard pens fail. Featuring a surgical-grade 0.8 in (20 mm) extended nib, these markers are specifically designed to navigate through drill holes and narrow brackets to reach the substrate below. Forged with a high-viscosity, waterproof ink formula, they deliver permanent, fast-drying lines on a wide array of surfaces including metal, glass, plastic, and timber. Whether you are marking anchor points for bathroom fixtures or layout lines for cabinetry, this technical layout set ensures surgical accuracy in every measurement.

Key Features

• Extended 20 mm Precision Nib: Forged with an ultra-slim, elongated tip designed to reach through deep drill holes and narrow gaps for precise marking.

• Industrial Fast-Dry Ink: Specifically formulated to be waterproof and smudge-resistant, ensuring your marks remain visible during high-friction drilling or sawing.

• Multi-Surface Adhesion Technology: Engineered to bond flawlessly to metal, concrete, wood, and glass, providing high-contrast layout lines in any work environment.

• Ergonomic Professional Body: Features a high-capacity ink reservoir and a clip-lock cap to prevent drying and ensure longevity on the job site.

Why Choose Our Professional Deep-Hole Series Unlike standard felt-tip markers that are too thick to enter drill sleeves, our Extended Nib Series is optimized for technical hardware installation. While generic markers often bleed or wash away with moisture, our Industrial Waterproof Ink maintains its integrity even in damp bathroom or outdoor conditions. We prioritize mechanical precision and workflow efficiency, delivering a professional-grade layout tool that eliminates guesswork and ensures a perfect fit for every fastener.

Perfect For

• Bathroom & Kitchen Hardware: Marking screw holes through thick porcelain fixtures or metal brackets.

• Industrial Metalworking: Scribing layout points through templates and pre-drilled plates.

• Cabinetry & Woodworking: Reaching through thick lumber to mark joint placements and assembly points.

Product Specs

• Nib Length: 0.8 in (20 mm)

• Ink Type: Professional-Grade Oil-Based (Waterproof)

• Line Width: 0.7 mm – 1.0 mm Precision Point

• Colors: High-Contrast Black, Red, Blue, Green

• Features: Fast-Drying, Smudge-Proof, Fade-Resistant