1/4" Shank Pen Marking Tool

This professional-grade CNC Marker Tool is engineered for precision marking, layout work, and program verification across a wide range of applications—from aerospace to art. Originally developed for the aerospace industry, it helps prevent costly errors by providing clear, accurate visual traces before machining begins.

Its spring-loaded design enables consistent, high-quality marks without flattening pen tips, and its versatile orientation allows it to be used in any direction—even upside down on robots or complex machines.

• Spring-loaded tip prevents pen damage and ensures consistent results
• Use in any orientation—ideal for robotics and aerospace setups
• Visually verify toolpaths before cutting to reduce errors
• Perfect for process verification, training, and layout work
• Includes Delrin inserts for various writing tools

Common Uses:

• Process and program verification
• Layout and work transfer
• Part numbering and assembly notes
• Clamp and fixture tracing
• Toolpath visualization and tiling validation
• Training and creative applications

Specifications:

• High-quality aluminum body
• Delrin inserts to fit multiple writing implements
• 1/4" shank fits standard collets
• Spring-loaded with variable force: ~0.3 to ~1.5 lbs
• 1/2" stroke for controlled depth

1/4" shank version can only be used with Sharpie Mini Marker and pencil inserts.

Originally developed for the aerospace industry for marking and verifying hole locations on airframe parts, this tool is now used in CNC shops, educational programs, and creative applications worldwide.

30022500