6mm Quick-Change Insert SES 4.9mm Square Shank for DIN 374/376 M8, Adjustable Torque-Limiting Safety Clutch - TECWERK

Benefit from the adjustable safety coupling and positive torque transmission via the square shank for reliable tapping operations; the insert is compatible with DIN 374/376 M8 and reduces the risk of tap breakage. Order the part directly via Metav Werkzeuge or consult their specialists for application advice.

Quick-change insert SES 6 mm x 4.9 mm, Size 1 — adjustable safety coupling | TECWERK

A Quick-change insert SES 6 mm x 4.9 mm, Size 1 designed for torque-limited tapping tasks in line with DIN 374/376 M8, suitable for workshop and production use

• Adjustable safety coupling for torque limitation
• Prevents tap breakage during tapping
• Torque transmitted via square shank

Safer tapping through controlled torque release

The Quick-change insert SES incorporates an adjustable safety coupling that limits transmitted torque to protect taps during interrupted threads or hard spots. The coupling slips at a defined torque level, which reduces the risk of catastrophic tap breakage and avoids costly rework. Torque transmission is effected via the square shank, delivering a positive drive that ensures repeatable, reliable force transfer to the tool shank without depending on friction alone. This technical arrangement supports consistent process quality and fewer tool failures in repetitive tapping operations.

Predictable fit and compatibility for efficient setup

Designed for standard tapping tooling, the insert matches DIN 374/376 M8 thread applications and uses a 6 mm shank diameter with a 4.9 mm square drive. Key interface dimensions—L1: 18.5 mm, L3: 24.5 mm, L4: 21.5 mm, L5: 25.5 mm, D: 32 mm, D1: 19 mm—ensure accurate seating in compatible holders and predictable reach. Different holder shafts require different inserts; selecting the correct insert size guarantees correct engagement and avoids play that can impair thread quality. Clear, measurable dimensions make inspection and inventory control straightforward for purchasing and maintenance teams.

Robust design for continuous workshop performance

With a focus on operational reliability, the insert is intended for repeated use in production and shop-floor environments where downtime matters. The torque-limiting feature minimises unplanned stoppages and protects both taps and workpieces, supporting cost-efficient machining cycles. Metav’s distribution and technical competence further back this solution: the company provides a broad range of precision tools, dependable supply from Emmerich and decades of industry experience—attributes that help reduce supplier complexity and support consistent workshop throughput.

Contact Metav Werkzeuge for tailored application advice or to source the TECWERK SES insert; specialists at Metav Werkzeuge are available by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930 to assist with selection and compatibility questions.

Technical data

• Article number: 4000832666NW
• SKU: 4000832666NW
• Product type: Quick-change insert SES
• Brand: TECWERK

Facts

• Size: 1
• Diameter: 6 mm
• Square shank: 4.9 mm
• Suitable for: DIN 374/376 M8
• L1: 18.5 mm
• L3: 24.5 mm
• L4: 21.5 mm
• L5: 25.5 mm
• D: 32 mm
• D1: 19 mm

Special features

• Adjustable safety coupling for torque limitation
• Prevents tap breakage
• Torque transmission via shank square
• Different inserts required for different shank sizes
• Packaging unit: 1

FAQ

How does the adjustable safety coupling protect taps?
The adjustable safety coupling limits torque by slipping at a preset threshold; the SES insert reduces overloads that typically cause tap breakage during tapping operations.

Is the insert suitable for DIN 374/376 M8 taps?
Yes, the SES insert is specified for DIN 374/376 M8 applications and features the corresponding interface dimensions for correct engagement.

Which shank sizes are covered by this insert?
This Size 1 insert is for a 6 mm shaft with a 4.9 mm square drive; different shaft dimensions require their matching inserts to ensure proper torque transfer.

What dimensions determine fit in a tap holder?
Critical dimensions for fit are L1, L3, L4, L5, D and D1; these ensure seating depth and engagement geometry in the holder are correct.

Can the torque threshold be adjusted on the workshop floor?
The torque limit is designed to be adjustable so that workshop personnel can set the slip point to suit material and thread conditions, reducing the chance of tap failure.

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