16mm Quick-Change Insert SES 12mm Square for DIN 374/376 M20, Adjustable Torque-Limiting Safety Clutch - TECWERK

Take advantage of the combination of reliable torque control and a compact, service-friendly design to reduce tap breakage and maintain production flow. Order the SES quick-change insert directly via Metav Werkzeuge or consult the team for compatibility and sizing advice.

TECWERK SES Quick-change Insert 16 mm x 12 mm, Size 3 — for DIN 374/376 M20

The SES Quick-change Insert 16 mm x 12 mm (Size 3) is a tap-holder insert with an adjustable safety coupling for torque limitation, engineered for use with DIN 374/376 M20 taps.

• Adjustable safety coupling for torque limitation
• Prevents tap breakage during threading
• Torque transmission via 12 mm square shank
• Compatible with DIN 374/376 M20 taps

Reduce unplanned downtime with torque-limited tapping

The insert’s core benefit is its adjustable safety coupling, which limits torque to protect taps from overload and breakage. By decoupling at a pre-set torque, the device prevents sudden tool failure that would otherwise halt production and require rework. This feature translates into measurable savings in machine uptime and reduces the need for frequent tap replacements, supporting a more predictable workflow in small-scale workshops and industrial departments alike. The design focuses on operational reliability rather than complex user adjustments, so the torque-limiting function is effective without adding setup overhead.

Reliable torque transfer with a clear mechanical interface

Torque is transmitted via the 12 mm square shank, providing a direct, positive drive path that minimises backlash and ensures consistent torque delivery to the tool. The insert is specified for a 16 mm diameter interface and configured for DIN 374/376 M20, making it suitable for standard metric tapping applications. The mechanical dimensions — L3: 41 mm, L4: 55.5 mm, L5: 45 mm, D: 72 mm, L1: 45.2 mm, D1: 48 mm — allow planners to assess axial and radial space requirements quickly. For users less familiar with these codes: the square shank is the connection that mates with the tapping machine or holder, and the clear dimensional data helps ensure a correct fit without trial-and-error.

Straightforward integration and service-friendly swap-outs

The insert is intended as part of a modular quick-change system: different inserts are used for differing shank sizes, enabling rapid changeovers between operations and minimising setup time. The unit’s construction allows simple replacement of the insert when a different shaft size is required, and the torque setting can be adjusted to match the hardness and thread depth of the workpiece material. This modular approach supports flexible shop-floor planning and reduces tool inventory complexity while maintaining consistent process safety across varied tapping tasks.

Contact Metav Werkzeuge today to confirm the correct SES insert for the tapping application and benefit from personalised technical advice and reliable supply from Emmerich.

Technical details

• Article number: 4000832687NW
• Product: SES Quick-change Insert
• Size: 3
• Brand: TECWERK

Facts

• Diameter: 16 mm
• Square shank: 12 mm
• L3: 41 mm
• L4: 55.5 mm
• L5: 45 mm
• D: 72 mm
• L1: 45.2 mm
• D1: 48 mm
• Compatible standard: DIN 374/376 M20
• Packaging unit: 1

Special features

• Adjustable safety coupling for torque limitation
• Prevents tap breakage
• Torque transmission via shaft square
• Suitable for standard metric tapping (DIN 374/376 M20)
• Requires different inserts for different shank sizes

FAQ

What is the purpose of the adjustable safety coupling on the SES insert?
The adjustable safety coupling in the SES Quick-change Insert provides torque limitation to avoid tap breakage by slipping or decoupling when a preset torque is exceeded.

Is the insert compatible with standard M20 taps?
Yes, the TECWERK SES Quick-change Insert 16 mm x 12 mm (Size 3) is specified for use with DIN 374/376 M20 taps.

Which shank size does this insert accept and how is torque transmitted?
Torque is transmitted via a 12 mm square shank; the insert is designed for a 12 mm square connection to deliver positive drive to the tap.

Can the SES insert be adjusted for different materials or thread depths?
The torque setting on the SES insert can be adjusted to match different material hardnesses and thread depths, helping to protect taps during varying machining conditions.

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