Professional Deep Hole Marker with Telescopic Tip
Ever tried marking inside a deep bore, cavity, or tight recess with an ordinary marker and watched it fail miserably? This specialised deep hole marker is engineered specifically for those awkward marking jobs that standard pens can't reach. With its telescopic tip extending up to 29mm deep, you can mark precisely where other markers simply can't go.
Whether you're marking drill holes, numbering components in tight spaces, or identifying parts deep inside assemblies, this professional-grade marker delivers permanent, waterproof marking on virtually any surface you encounter in workshop environments.
Reaches Where Others Can't
The genius is in the telescopic tip design - a stainless steel construction that extends to reach 29mm into holes, cavities, and recesses while maintaining precise line control. The adjustable wick tip gives you variable line width from 0.5mm for fine detail work up to 1.4mm for bold marking that's visible from a distance.
This isn't just about depth - the telescopic design also extends the marker's working life. When the tip wears down, simply adjust it for fresh marking surface. It's like getting multiple markers in one tool, making it brilliant value for busy workshops.
Universal Surface Compatibility
Marks on everything you're likely to encounter - plastic, metal, stone, wood, glass, and more. The quick-drying, alcohol-based ink creates permanent, waterproof marks that won't fade, smear, or wash off even in harsh conditions. Perfect for outdoor work, marine applications, or anywhere your markings need to survive weather and chemicals.
The chlorine-free formulation makes it safe for use around sensitive materials and environments, while still delivering the durability and permanence you need for professional marking applications.
One-Handed Operation Design
The special holster with clip is designed for true one-handed operation - crucial when you're holding components, balancing on a ladder, or working in tight spaces where you can't spare both hands. The fail-safe design means it'll stay secure in any bag or pocket without leaking or losing the cap.
The large ink supply ensures you won't run dry in the middle of important marking jobs, while the robust construction handles the daily punishment of workshop life without breaking or failing when you need it most.
Professional Applications
Essential for machining operations, assembly work, maintenance marking, parts identification, and any situation where precise marking in difficult-to-reach locations is critical. The combination of reach, durability, and versatility makes it invaluable for professional tradies who demand tools that actually work.
Perfect for automotive workshops marking inside engine bays, marine mechanics working on tight boat fittings, machinists marking deep bores, or maintenance crews identifying components in cramped spaces.
Technical Specifications
- Maximum marking depth: 29mm telescopic reach
- Variable line width: 0.5mm to 1.4mm adjustable
- Stainless steel telescopic tip construction
- Waterproof, quick-drying alcohol-based ink
- Marks on plastic, metal, stone, wood, glass, and more
- Chlorine-free formulation for safe use
- One-handed operation with secure clip holster
- Extended service life through adjustable tip design
A must-have tool for any professional who needs reliable marking in challenging locations. This deep hole marker solves the marking problems that standard pens simply can't handle, delivering precision and permanence where it matters most.
Workshop Tip: Keep the marker perpendicular to the surface when marking deep holes for the cleanest lines. The alcohol-based ink dries fast, so you can handle marked components almost immediately without smudging - perfect for production work where time matters!