Multi-Color Deep Hole Long Head Marking Pen for Metal Wood Glass Colloids

Standard markers often struggle to write on non-porous surfaces like glass, metal, or colloids, and their stubby tips cannot reach into recessed areas or deep holes. This specialised marking pen is designed to solve both problems at once. Its 20mm long pen tip gives you access to awkward-to-reach spots, while the xylene free, fast drying ink delivers clear marks on a range of materials. Available in four colours – black, red, blue, and green – it is a practical tool for workshops, factories, laboratories, and home use where precise marking matters.

Features and Construction

The pen is built around two key practical advantages: an extended tip for deep-hole marking and a solvent-reduced ink formulation. These features make it suitable for industrial marking tasks where standard pens would be unusable.

Material and Build

The pen uses a xylene free ink that reduces the strong chemical smell typical of solvent-based markers. The long pen tip is designed for precision and access, with a robust casing to withstand repeated use on hard surfaces such as metal and glass. The pen body is standard sized for comfortable handling during extended marking sessions.

Size and Practical Fit

The defining spec is the 20mm pen tip, which is significantly longer than standard marker tips. This allows the user to mark inside deep holes, grooves, and recessed components without bending or angling the pen awkwardly. The pen itself is compact enough to fit in a standard tool pouch or pocket.

Uses and Placement

This marker is intended for tasks where ordinary pens fail due to surface type or access constraints. It is equally useful in professional trades and domestic settings.

Event or Professional Use

In a workshop or factory environment, the long tip is ideal for marking metal parts, colloid components, or glass panels before assembly or machining. The fast drying ink reduces the risk of smudging during handling, while the xylene free formula makes it more pleasant to use in enclosed spaces.

Everyday Home Use

Around the home, this pen can label glass jars, wood storage boxes, or plastic colloid containers. The four colour options help with colour-coding items, and the long tip can reach into recessed areas of machinery or furniture that need identification marks.

Benefits and Buying Value

The pen offers clear practical benefits for anyone who needs to mark non-porous or irregular surfaces. Its design is straightforward and functional.

Reuse and Low Maintenance

The marker does not require any special maintenance beyond keeping the cap on when not in use. The ink is resistant to drying out quickly, and the pen can be used repeatedly until the ink runs out. There are no replaceable parts or complex care routines.

Why Choose This Product

If your work involves marking deep holes, glass, metal, or colloids, this pen directly addresses those challenges with a 20mm tip and xylene free ink. It offers four colour choices for flexibility, and the fast drying, smudge-resistant ink helps keep your marks clean and legible on non-absorbent surfaces.