Marker for deep holes Lyra LY4480051 — blue ink, long-reach marking pen

Deep-hole marker Lyra LY4480051 is a specialist long-reach marking pen with blue Lyra ink designed to place permanent, visible marks inside narrow, recessed or hard-to-reach holes and cavities. The pen's extended applicator and narrow tip deliver a controlled ink flow to metal, plastic and coated surfaces, enabling clear identification during production, assembly and inspection processes. The body is shaped for stable grip and one-handed operation when working in confined areas.

Advantages

The long-reach design provides access to deep bores and recessed surfaces without needing to disassemble assemblies or use improvised tools. The blue Lyra ink dries to a permanent, contrasting mark on common industrial materials and resists smearing on many surfaces. The narrow tip offers precise placement of marks, reducing accidental marking on surrounding areas, while the pen construction supports steady control during use in tight spaces.

Suitable for

• Marking inside deep holes and blind bores
• Identifying parts during assembly and quality inspection
• Applying permanent marks on metal, plastic and coated components
• Workshop and maintenance tasks in confined or recessed areas

Key specifications

• Ink colour: blue
• Applicator type: long-reach narrow tip for deep access
• Mark permanence: fast-drying, resistant to smearing on many surfaces
• Suitable surfaces: metal, plastic, coated substrates
• Body: ergonomic for single-hand operation in confined spaces

How to use

Shake the pen briefly if required and depress the tip to start the ink flow according to the manufacturer's priming instructions. Insert the long applicator into the hole or recessed area and press the tip against the target surface, applying gentle, even pressure to create a visible mark. For consistent results, test on a spare or inconspicuous area to confirm ink behaviour on the specific substrate before marking production parts. Replace the cap after use to prevent drying.

Usage recommendations

Use on clean, dry surfaces for optimal adhesion and visibility. Avoid applying the marker to hot surfaces or directly onto lubricants, heavy oils or loose particulates. For critical or high-temperature applications, verify compatibility of the ink with the substrate and environmental conditions before permanent marking.