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

Take advantage of the adjustable safety coupling and the robust 12 mm square torque transmission to reduce tap breakage and maintain uninterrupted production. Order directly via Metav Werkzeuge or consult our specialists for application advice and fitting options.

Quick-change insert SES 16 mm x 12 mm, Size 2 – for DIN 374/376 M20 (TECWERK)

A quick-change insert SES designed for M20 thread tapping that reduces tool breakage with an adjustable safety coupling and simple square-shank torque transfer

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

Reduce tap breakage and keep production running

The adjustable safety coupling built into this quick-change insert acts as a mechanical torque limiter, allowing a controlled slip before a tap is overloaded. This feature significantly reduces the risk of tap breakage, which otherwise causes unplanned downtime and difficult rework. The torque is transferred directly through the 12 mm square shank, ensuring a positive connection between holder and tap and reliable power transmission under intermittent loads. For machining operations that require consistent thread quality, the combination of torque control and firm drive engagement supports predictable cycle times and fewer tool-change interruptions.

Speed up changeovers and simplify tool handling

The SES design supports rapid interchange of the tapping adapter, accelerating set-up and reducing non-productive time in small-batch and mixed-production environments. The insert’s geometry is prepared for use with standard M20 taps specified by DIN 374/376, making selection straightforward for maintenance and operations teams. Clear overall dimensions such as L3: 30.5 mm, L4: 35 mm, L5: 34 mm, D: 50 mm, L1: 32 mm and D1: 31 mm help to confirm fit in existing holders and machine spindles. Where different shank sizes are used, matching inserts are available to maintain correct alignment and secure clamping without compensating fixtures.

A practical component for workshop reliability

Designed for routine industrial use, the insert focuses on practical benefits: repeatable torque behaviour, simplified inventory through standard compatibility, and reduced scrap rates due to broken taps. The adapter’s specification supports workshops and production lines that prioritise uptime and repeatable thread integrity. For procurement, the part is supplied as a single unit and integrates with established tool control practices; documentation of the adapter’s mechanical limit behaviour aids risk assessments and process planning in quality-conscious operations.

For reliable torque protection and faster changeovers, choose the TECWERK quick-change insert and contact Metav Werkzeuge for application-specific advice and supply options

Technical data

• Article number / SKU: 4000832682NW
• Product: Quick-change insert SES, Size 2
• Compatible with: DIN 374/376 M20
• Square drive: 12 mm
• Diameter: 16 mm
• Packaging unit: 1

Core data

• Diameter D: 16 mm
• Square drive: 12 mm
• L1: 32 mm
• L3: 30.5 mm
• L4: 35 mm
• L5: 34 mm
• D1: 31 mm

Special features

• Adjustable safety coupling for torque limitation
• Prevents tap breakage
• Torque transmission via the shaft square
• Requires matching insert for differing shank sizes

FAQ

What is the primary function of this quick-change insert?
The quick-change insert SES 16 mm x 12 mm (TECWERK, SKU 4000832682NW) provides controlled torque limitation via an adjustable safety coupling to prevent tap breakage during M20 tapping operations.

Which taps is the insert compatible with?
Compatibility is with taps conforming to DIN 374/376 for M20; the insert is designed to work directly with those standard thread taps when used with the correct holder.

How does the torque limitation work in practice?
The insert’s adjustable safety coupling slips at a preset torque, protecting the tap from overload while the 12 mm square drive maintains reliable torque transmission until the limit is reached.

Are there dimensional details to check before ordering?
Yes; relevant dimensions include L1: 32 mm, L3: 30.5 mm, L4: 35 mm, L5: 34 mm, D: 50 mm and D1: 31 mm — these determine fit with existing holders and spindles.

Is the insert supplied individually or in sets?
The product is supplied as a single unit (packaging unit 1), allowing tailored stocking and replacement practices.

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