Mühlen Pens 5
Spiral Coil Binding Closing Pliers
Small, Practical and Convenient Spiral Coil Closing Pliers
MÜHLEN Pens 5 is designed to quickly and easily crimp both exposed ends of spiral (coil) binding material of any length and thickness, closing them in a single motion.
Once the binding process is complete, the ends of the spring-like coil material must be crimped closed so it cannot slip out of the bound booklet. This specially designed pliers makes the task easy for the user.
With the red-dot marked side of the pliers facing up, when the coil material ends are squeezed or cut, the pliers automatically bend the ends inward, keeping the bound booklet securely fixed without shifting.
Technical Specifications
- Specially designed to close spiral coils
- Closes both exposed ends of the coil by bending them
- For spiral materials of any length and thickness
- Suitable for coils of any width
- Can bend materials of any thickness
- Comfortable, lifetime use
- 24-month warranty
Advantages
- Closes coils of any length
- Works with coils of any thickness
- Small and easy to use
Physical Properties
- Palm-held pliers
Mühlen Pens 5 — Spiral Coil Closing Pliers for Finished Bindings
Who Is It For?
The Mühlen Pens 5 spiral coil closing pliers are a small, palm-held hand tool for print shops, stationery stores, offices, schools and binding services that work with coil (spiral) binding. After a booklet has been bound, the open ends of the spring-like coil have to be crimped so the coil cannot work its way out of the pages. The Pens 5 is made specifically for this last step and makes it quick and easy.
Key Features and What They Do
- Closes both ends: bends the two exposed ends of the coil inward, locking the material in place so the booklet stays fixed and does not shift.
- One-motion operation: squeezing the pliers crimps the end in a single, quick movement.
- Fits every coil: works with spiral binding material of any length and thickness, and with coils of any width.
- Red-dot guide: a marked side tells you which way up to hold the pliers for the correct bend.
- Compact palm-held design: small, practical and easy to use.
Frequently Asked Questions
Why do coil ends need to be closed?
Without crimping, the spring-like coil can slip out of the bound booklet. Bending the ends inward keeps it secured.
How do I hold the Pens 5 correctly?
Hold it with the red-dot marked side facing up; when you squeeze or cut the coil end, the pliers bend it inward automatically.
Which coil sizes does it work with?
It is suitable for spiral coils of every length, thickness and width.
Does the Pens 5 come with a warranty?
Yes, the Mühlen Pens 5 is covered by a 24-month warranty.
Usage and Care Tips
Finish inserting the coil completely before crimping, then crimp both exposed ends. Always check that the red dot faces up so the bend goes toward the inside of the binding. Keep the pliers in a dry place with your other binding supplies so they are ready for the next job.

















