ER 16 Collet Spanner For ER/ESX Nuts, Hardened Zinc-Plated With Hanging Hole - TECWERK

Take advantage of a tool that combines secure clamping for ER/ESX nuts, hardened special steel construction and space-saving handling thanks to the integrated hanging hole; order directly via Metav Werkzeuge or consult our specialists for application advice.

Collet spanner ER No.250 Gr. ER 16 AMF – Collet spanner for ER/ESX clamping nuts, hardened and zinc-plated (TECWERK)

The Collet spanner ER No.250 Gr. ER 16 AMF is a workshop tool designed to tighten and loosen ER/ESX clamping nuts in toolholding systems, compatible with DIN 6499 specifications

• Secure clamping for ER/ESX nuts
• Conforms to DIN 6499 standards
• Special steel, hardened and zinc-plated
• Integrated hanging hole for storage

Consistent clamping that reduces setup time

A compact wrench engineered for repeatable results, the spanner delivers consistent clamping of ER/ESX nuts which reduces setup variability and minimises rework. The tool’s construction from special steel, combined with heat treatment, provides a stable contact surface that resists deformation under torque; this ensures that the ER 16 interface retains its dimensional accuracy over repeated cycles. For workshops aiming to keep production steady, this mechanical reliability translates into fewer stoppages and predictable tool performance.

Robust finishing for long service life

Finished with a zinc-plated surface after hardening, the device offers corrosion resistance suitable for typical shop environments without the need for extra maintenance. The hardened surface protects critical engagement faces against wear, so the spanner maintains fit and function with clamping nuts over time. The inclusion of an integrated hanging hole facilitates tidy storage at the bench or in a tool board, helping to keep the working area organised and tools within easy reach during frequent tool changes.

Designed for compatibility and straightforward handling

Made specifically for ER/ESX clamping nuts to the DIN 6499 specification, the tool prioritises fit and ergonomics. The simple geometry of the key ensures intuitive insertion and removal from the nut while providing the leverage necessary for secure tightening. This straightforward usability reduces handling errors and shortens the time needed for clamping operations, supporting efficient workflows in metalworking and precision toolholding applications. For buyers seeking tried-and-tested practicality, the focus is on reliable mechanical function rather than complex features.

Contact Metav Werkzeuge for stock availability and application guidance on TECWERK collet spanners; our Emmerich-based team will advise on compatibility and delivery options by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 4000832443NW
• SKU / UID: 4000832443NW
• Item designation: Collet spanner ER No.250 Gr. ER 16 AMF

Facts

• Key size: ER 16
• Packaging unit: 1

Special features

• For secure clamping of ER/ESX clamping nuts according to DIN 6499
• Made from special steel
• Hardened and zinc-plated finish
• With hanging hole for easy storage

FAQ

What clamping systems is this spanner compatible with?
The spanner is designed for ER/ESX clamping nuts and complies with the DIN 6499 specification; the Collet spanner ER No.250 Gr. ER 16 AMF fits the ER 16 size.

Is the tool corrosion-resistant for workshop use?
Yes, the hardened construction with a zinc-plated finish provides corrosion protection suitable for standard workshop environments.

Can the spanner withstand repeated torque applications without deforming?
The use of special steel and heat treatment gives the spanner high wear resistance, ensuring dimensional stability under repeated clamping cycles.

Manufacturer/Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund