Multi-Color Deep Hole Long Head Marking Pen for Metal Wood Glass Colloids with 20mm Long Pen Tip Ink Resistant Fast Drying Xylene Free Black Red Blue Green
Multi-Color Deep Hole Long Head Marking Pen with 20mm Tip for Metal and Glass

This marking pen is designed for situations where standard pens fall short. The 20mm long pen tip allows you to reach into deep holes and recessed areas with ease, making it ideal for marking on metal, wood, glass, and colloids. The fast-drying, resistant ink ensures your marks stay clear and legible, while the xylene-free formula reduces chemical exposure. Available in black, red, blue, and green, this pen provides a practical solution for workshop, industrial, and DIY marking needs.
Features and Construction

The pen is built around a simple yet effective design that prioritises reach and ink performance. Each component is chosen to support reliable marking in challenging spots.
Material and Build
The pen features a plastic body and a long fibre tip that delivers ink consistently. The tip length of 20mm is the standout feature, extending far beyond what standard pens offer. The ink is specially formulated to resist water and fading once dry.
Size and Practical Fit
At 20mm, the long tip fits into narrow openings and deep holes. The pen body is of standard diameter for comfortable grip. The overall size is compact enough for pocket or toolbox storage.
Uses and Placement

This pen is designed for marking tasks that require precision in awkward spaces. It works on a variety of materials as stated, making it versatile for multiple environments.
Event or Professional Use
For professionals in construction, metalworking, or maintenance, this pen provides a quick way to mark on metal surfaces or label components in deep cavities. The four colour options help with colour-coding parts.
Everyday Home Use
At home, use the pen for marking tools, labels on wood or glass, or DIY projects. The fast-drying ink avoids smudges on finished surfaces. The long tip also helps in marking behind fixtures or inside boxes.
Benefits and Buying Value

The key value of this pen lies in its reach and safety. It solves a common problem without introducing unnecessary complexity.
Reuse and Low Maintenance
Cap the pen after each use to keep the tip moist. With proper storage, the pen lasts through many marks. The xylene-free ink means less concern about strong fumes.
Why Choose This Product
If you need to mark inside deep holes or on non-porous surfaces like glass and metal, this pen offers a dedicated solution. The combination of long tip, fast-drying ink, and multiple colours gives practical flexibility at a modest cost.

