3.5mm Quick-Change Insert SES 2.7mm Square Shank for DIN 371 M3, Adjustable Torque Safety Coupling - TECWERK

Take advantage of the adjustable safety coupling and the shank-square torque transfer to reduce tap breakage and unplanned downtime, while keeping tapping reliable for DIN 371 M3 threads. Order the SES quick-change insert directly via Metav Werkzeuge or consult our specialists for compatibility and workshop optimisation.

SES Quick-change Insert 3.5 mm × 2.7 mm, Size 1 – for DIN 371 M3 (TECWERK)

SES Quick-change Insert 3.5 mm × 2.7 mm, Size 1 is a compact tap holder designed for safe, efficient thread tapping in line with DIN 371 M3 specifications

• Adjustable safety coupling for torque limiting
• Minimises tap breakage during tapping
• Torque transmitted via shank square drive
• Compatible with DIN 371 M3 taps

Prevent broken taps and reduce machine downtime

The integrated adjustable safety coupling limits torque to prevent sudden overloads that cause tap fracture. By decoupling torque peaks, the insert protects both the tool and the workpiece, leading to fewer interruptions and lower rework rates. This mechanical safeguard is particularly valuable for delicate or small-diameter threads where a single broken tap can halt production and inflate costs; the result is a more predictable tapping process and improved throughput.

Consistent torque transmission for accurate threads

Torque is transmitted through a shank square drive, ensuring a positive, backlash-free connection between holder and tap. This construction maintains axial alignment during rotation and supports consistent thread geometry, which matters for repeatable assembly and quality control. For applications compliant with DIN 371 M3, the precise drive interface reduces the risk of misalignment and wear, helping to produce reliable, functional threads batch after batch.

Simple workshop integration and operator confidence

The compact design and quick-change concept allow rapid swapping of inserts when different shank sizes are required, supporting flexible production runs. The safety coupling is adjustable to match material and tap condition, offering both novice and experienced operators a tangible safeguard. Combined with Metav Werkzeuge’s emphasis on accessible precision and trusted supply, this insert contributes to a confidence-building workflow that keeps small and medium workshops productive.

Contact Metav Werkzeuge today to confirm the SES Quick-change Insert’s suitability for existing tapping setups and to request specific compatibility advice from our specialists

Technical data

• Article number: 4000832659NW
• SKU: 4000832659NW
• Product type: Schnellwechseleinsatz SES
• Size: Gr. 1
• Suitable for: DIN 371 M3
• Packaging unit: 1

Facts

• Diameter D: 32 mm
• D1: 19 mm
• L1: 18.5 mm
• L3: 24.5 mm
• L4: 21.5 mm
• L5: 25.5 mm
• Nominal diameter: 3.5 mm
• Shank square: 2.7 mm

Special features

• with adjustable safety coupling for torque limitation
• to avoid tap breakage
• torque transmission via the shank square
• different inserts required for different shank sizes

FAQ

What is the main purpose of this quick-change insert?
The SES Quick-change Insert is designed to protect taps from overload by limiting torque via an adjustable safety coupling while maintaining reliable torque transmission through a shank square drive.

Which taps are compatible with this insert?
The insert is specified for DIN 371 M3 taps and is built to interface with taps that match that standard using the 2.7 mm square drive and the listed dimensions.

How does the safety coupling reduce tap breakage?
The adjustable coupling disengages or slips at a preset torque threshold, preventing torque peaks from transferring directly to the tap and thereby reducing the likelihood of fracture during tapping.

Is this insert suitable for high-volume workshop use?
Yes. The quick-change concept and robust torque transmission make it suitable for repetitive tapping tasks where reduced tool failure and rapid insert changes improve productivity.

Can the torque threshold be adjusted on-site?
Yes. The torque-limiting setting is user-adjustable to align with material type and tap condition, allowing tailored protection for different applications.

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