4.5mm Quick Change Insert 3.4mm Square Drive For DIN 371 M4 / DIN 374/376 M6, L3 4mm - TECWERK

Take advantage of a compact, precision-minded tool that combines fast changeover and secure torque transmission for efficient tapping operations; the insert’s compatibility with DIN tap sizes simplifies tooling choices and keeps cycle times low. Order directly via Metav Werkzeuge or consult our specialists for application advice.

Quick-change insert SE 4.5 mm x 3.4 mm, Size 1 – TECWERK

The quick-change insert SE 4.5 mm x 3.4 mm, Size 1 is a compact tapping insert designed for use with standard DIN thread taps in small- to medium-batch production and workshop environments

• Rapid insert change for efficient tooling
• Compatible with DIN 371 M4 and DIN 374/376 M6
• Square shank 3.4 mm for secure torque transfer
• No safety coupling; stable clamping via quick clamp

Precision where short projection and rigidity matter

The quick-change insert is built for stable tapping in confined setups. With a short projection and compact body, the holder reduces lever-arm forces and improves thread quality by limiting axial deflection. Compatibility with DIN 371 M4 and DIN 374/376 M6 taps ensures straightforward integration into existing toolsets, while the square-shank drive provides direct torque transfer, reducing slippage and wear during interrupted cuts.

Efficient handling and toolroom productivity

Changeover speed is a practical advantage: inserts are held by a quick-clamping device, enabling rapid replacement and minimising machine downtime. The absence of a safety coupling results in a more direct drive connection, which is beneficial where consistent torque transmission is required. For workshops seeking to speed set-up times without complex adapters, the quick-change system offers a clear efficiency gain and supports lean production routines.

Compatibility and application guidance for machinists

Designed as a Size 1 insert, the component matches specific shank interfaces; different shank sizes require corresponding inserts to guarantee proper engagement. The holder’s design keeps the tap aligned during engagement, which is particularly useful for delicate or high-thread-count taps. This focus on precise alignment and robust clamping helps maintain repeatable thread profiles across runs and operators.

Installation, inspection and maintenance notes

Installation is straightforward: the tap is located in the insert and secured by the quick-clamping mechanism, while torque is transmitted via the shaft square to the spindle. Regular inspection of the clamping faces and the square drive is recommended to preserve fit accuracy. Spare inserts for other shaft sizes are available where different square measurements are in use, allowing a coherent modular approach to tooling.

Contact Metav Werkzeuge for application advice and rapid supply from Emmerich – call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• Article number: 4000832635NW
• Label: Quick-change insert SE 4.5mm x 3.4mm Size 1 for DIN 371 M4 and DIN 374/376 M6
• Product type: Schnellwechseleinsatz SE
• Manufacturer: TECWERK
• Size: Gr.1
• Suitable for: DIN 371 M4; DIN 374/376 M6
• Packaging unit: 1

Facts

• Diameter: 4.5 mm
• Square shank: 3.4 mm
• L3: 4 mm
• L4: 21.5 mm
• L5: 7 mm
• D: 30 mm
• L1: 18.5 mm
• D1: 19 mm

Special features

• without safety coupling
• inserts hold thread taps via quick-clamping device
• torque transmission via shaft square
• different inserts required for different shank sizes

FAQ

Which tap sizes are compatible with this insert?
The quick-change insert SE 4.5 mm x 3.4 mm, Size 1 is specified for use with DIN 371 M4 and DIN 374/376 M6 taps and is designed to secure those sizes reliably.

How is torque transmitted through the insert?
Torque is transmitted via the square shank (3.4 mm) of the holder; the design ensures direct drive transfer from spindle to tap without a safety coupling.

Are different shank sizes available for other tap ranges?
Different inserts are required for other square shank dimensions; the product line allows matching inserts to the specific shaft measurement in use.

What maintenance is recommended for long service life?
Regular inspection of clamping faces and the square drive is advised; cleaning and light lubrication where applicable will help preserve precise fit and reduce wear.

Is this insert suitable for high-volume production?
The compact design and quick-clamping mechanism make the insert appropriate for repetitive tapping tasks in small- to medium-volume production where changeover speed and repeatability are priorities.

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