Deep Drill Hole Long Nib Waterproof Marker Pens – 20 Colors

Multi-Purpose Deep Drill Hole Waterproof Marker Pens

Meet your new go-to marking tool. These long nib waterproof marker pens are engineered with an extended tip designed to reach deep into drill holes, tight cavities, and hard-to-access surfaces — making them indispensable for woodworking, carpentry, plumbing, bathroom tiling, crafts, and everyday office use. Available in 20 vibrant color options, these permanent oil-based markers deliver bold, lasting lines every time.

Key Features

• Extended Long Nib (45mm): Reaches deep into drill holes, recesses, and narrow spaces where standard markers simply can't go.
• Waterproof & Permanent: Oil-based ink resists moisture, splashes, and smudging — marks stay clear and readable on wood, metal, plastic, stone, and more.
• 20 Color Options: Choose the perfect color for color-coding, crafting, labeling, or detailed project work.
• Multi-Surface Performance: Works on wood, PVC, ceramic, drywall, concrete, and most porous and non-porous materials.
• Versatile Pack Sizes: Available in packs of 1, 3, 4, 6, or 10 — stock up for your workshop, studio, or office.
• Model K-45: Precision-engineered tip for consistent ink flow and controlled line width.
• Comfortable Grip: Ergonomic barrel design reduces hand fatigue during extended marking tasks.

Perfect For

• Woodworking & carpentry — marking drill points, cut lines, and measurements
• Bathroom & tile installation — marking precise points in tight spots
• Crafts, DIY, and art projects
• Office labeling, color-coding, and stationery use
• Construction & home improvement projects

Product Specifications

• Model Number: K-45
• Ink Type: Permanent Oil-Based
• Nib Length: Approx. 45mm (long)
• Dual-Side Writing: No
• Available Pack Quantities: 1 / 3 / 4 / 6 / 10
• Color Options: 20 colors available

For tips on safe use of permanent markers in crafts and office environments, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What makes these deep drill hole marker pens different from regular markers?

A: Unlike standard markers, these long nib waterproof marker pens feature an extended ~45mm tip that reaches deep into drill holes, recessed cavities, and narrow spaces. The permanent, oil-based ink also ensures marks remain visible and water-resistant on a wide range of surfaces including wood, metal, ceramic, and concrete — making them far more versatile than a typical office marker.

Q: What surfaces can the waterproof marker pens write on?

A: These multi-purpose markers are designed to work on most porous and non-porous surfaces, including wood, PVC pipe, ceramic tile, drywall, concrete, metal, and plastic. Their waterproof, permanent ink holds up to moisture and everyday handling, making them ideal for both indoor and outdoor projects.

Q: How many pens come in a pack, and what colors are available?

A: You can choose from pack sizes of 1, 3, 4, 6, or 10 pens, and select from 20 different color options to suit your project needs — whether you're color-coding materials, crafting, or marking precise measurements in your workshop.