3.5mm x 2.7mm Quick-Change Insert SE Size 1 for DIN 371 M3 / DIN 374/376 M5, 4mm L3 - TECWERK

Take advantage of the combination of rapid changeover, precise torque transmission and compact dimensions for reliable tapping operations; order through Metav Werkzeuge or consult our specialists for selection support.

Quick-change insert SE 3.5 mm x 2.7 mm, Size 1 – for DIN 371 M3 / DIN 374/376 M5 (TECWERK)

The Quick-change insert SE 3.5 mm x 2.7 mm, Size 1 is a compact insert for holding thread taps in quick-clamping tooling, designed for efficient workshop and production use.

• Quick-change design for rapid tool swaps
• Compatible with DIN 371 M3 and DIN 374/376 M5
• Torque transfer via 2.7 mm square shank
• Compact size: Ø 3.5 mm, L4 21.5 mm

Faster tapping cycles with secure quick-clamp integration

The quick-change concept of this insert delivers measurable workflow advantages by shortening tool-change intervals in tapping operations. Held in the quick-clamping device, the insert keeps thread taps reliably seated for repeatable cycles, which leads to reduced downtime and steadier throughput on production lines. The short installation length and compact outline support close tool spacing in multi-station setups, while the absence of a safety coupling simplifies the mechanical connection and avoids added components that can complicate inventory management.

Direct torque transmission and consistent tool engagement

Torque is transmitted directly through the 2.7 mm square shank, ensuring a positive mechanical drive between holder and tap. This arrangement provides consistent engagement and minimises slippage under normal tapping loads; the insert is therefore suitable for use with taps conforming to DIN 371 (M3) and DIN 374/376 (M5) standards. The design note that different shank measures require corresponding inserts is important for mixed tooling fleets: select the matching insert size for reliable torque transfer. Key installation dimensions are compact, with L4: 21.5 mm and L1: 18.5 mm, which aids layout planning and tool reach calculations.

Workshop compatibility and practical stocking

As a compact, size 1 insert with an external diameter of Ø 3.5 mm, this component integrates neatly into existing tap-holding systems and is suitable for both trade and light industrial environments where frequent tool changes are common. The insert holds taps in the quick-clamping mechanism and transmits drive via the shaft square; it is supplied without safety coupling, so planning for torque-limiting measures elsewhere in the process may be appropriate for sensitive applications. Single units arrive in the standard packing configuration (packaging unit: 1), simplifying replenishment for consumable toolstores. For guidance on matching the insert to specific tap geometries or clamping systems, Metav Werkzeuge can advise on compatibility and inventory planning.

For a tailored recommendation on integrating the TECWERK quick-change insert into existing tapping stations, contact Metav Werkzeuge for expert advice and procurement assistance at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 4000832634NW
• Product type: Schnellwechseleinsatz SE
• Size: Gr.1

Specifications

• Diameter Ø: 3.5 mm
• Square shank: 2.7 mm
• L3: 4 mm
• L4: 21.5 mm
• L5: 7 mm
• D: 30 mm
• L1: 18.5 mm
• D1: 19 mm
• Packaging unit: 1

Features

• Suitable for DIN 371 M3
• Suitable for DIN 374/376 M5
• Without safety coupling
• Inserts hold taps in quick-clamping device
• Torque transmission via shaft square
• Different inserts required for different shank sizes

FAQ

Which taps are compatible with this insert?
The quick-change insert SE 3.5 mm x 2.7 mm, Size 1 is compatible with taps to DIN 371 (M3) and DIN 374/376 (M5); the SKU is 4000832634NW and the item is supplied by TECWERK as a Schnellwechseleinsatz SE.

Does the insert include a safety coupling?
No, the insert is supplied without safety coupling; torque is transmitted directly via the square shank.

How is drive torque transmitted to the tap?
Drive is transferred over the 2.7 mm square shank, ensuring positive mechanical engagement between holder and tap for consistent torque transfer.

Are different inserts required for other shank sizes?
Yes, the system requires matching inserts for different square-shank dimensions; this specific insert uses a 2.7 mm square drive.

What are the key dimensions to check before ordering?
Important dimensions include Ø 3.5 mm, square shank 2.7 mm, L4: 21.5 mm, L1: 18.5 mm, D: 30 mm, and D1: 19 mm; verify these against the toolholder and tap specifications.

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