90mm Tool Extension DIN 377 Square Shank Zinc Plated, For Hand Taps and Reamers - TECWERK

Benefit from a standard-compliant extension that improves manual tapping efficiency: DIN 377 compatibility, a 4‑square shank to DIN 10/ISO and a zinc-plated finish for extended service life. Order the extension directly via Metav Werkzeuge or consult our specialists for integration advice.

Tool extension DIN 377 — 4‑square shank, zinc‑plated, 90 mm (TECWERK)

A tool extension DIN 377 designed for manual taps and hand reamers, zinc‑plated with a 4‑square shank to DIN 10/ISO and an overall length of 90 mm

• DIN 377 standardised construction
• Zinc‑plated for corrosion resistance
• 4‑square shank to DIN 10 / ISO
• 90 mm overall length

Consistent, standardised fit for manual threading

Built to DIN 377, this extension ensures a reliable, repeatable interface with manual taps and hand reamers. The standardised geometry guarantees compatibility across workshop toolsets, reducing time spent checking fit or swapping adaptors. By pairing a verified shank form with thread compatibility for M3.5, the extension simplifies the transfer of torque from the driver to the tap, which translates into fewer setup interruptions and steadier manual tapping results. The combination of standard conformity and measurable dimensions supports informed procurement and predictable workflow integration.

Durable finish that lowers maintenance needs

The zinc‑plated surface provides practical corrosion protection suitable for general workshop environments. As a result, maintenance intervals can be extended and tool appearance preserved without specialised coatings or handling. Zinc as the base material offers an economical balance between protection and cost, making this extension a practical choice where exposure to humidity or light cutting fluids is a factor. The plating also facilitates smoother insertion and withdrawal from tool holders, contributing to a more efficient manual process over the long term.

Secure coupling for safer manual operation

A 4‑square shank manufactured to the dimensions specified in DIN 10 and recognised ISO equivalents affords a firm seating in compatible holders. The square form reduces the risk of rotational slip under manual torque and helps maintain alignment during tapping operations. Secure mechanical engagement improves user control and reduces the chance of tap breakage, which is particularly valuable in fine‑pitch threads such as M3.5. This mechanical reliability supports consistent part quality and lowers the likelihood of rework.

Practical extension length for versatile use

With a total length of 90 mm, the extension provides additional reach for recessed or awkward thread positions without significantly increasing leverage that could affect control. The added reach enables access to deeper bores or partially obstructed workpieces while keeping the operator’s hand clear of the cutting zone. Because the piece is intended for manual use with taps and reamers, the moderate length supports safe handling and straightforward torque application, improving transfer of effort from tool to thread.

Suitable for workshops, maintenance and toolrooms

This extension is appropriate for general maintenance, industrial workshops and small‑scale production where manual tapping is frequent. Its standard conformity and durable finish make it a sensible choice for procurement managers who wish to harmonise inventory and reduce variant complexity. Combined with Metav’s wide product range and quality filtering from Emmerich, the component supports efficient stock management and dependable replenishment across trades and departments.

For specification guidance or to order the TECWERK tool extension via Metav Werkzeuge, contact Metav’s specialists in Emmerich for tailored advice and delivery coordination: info@metav-werkzeuge.com / +49 2822 7131930

Technical Data

• Article number: 2000867903NW
• Label: Werkzeugverlängerung DIN 377 4KT 3mm Zink M3,5 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867903NW

Facts

• Overall length: 90 mm
• Shank form: 4‑square, 3 mm
• Thread compatibility: M3.5

Special features

• Material: zinc
• Surface: zinc‑plated
• Standard: DIN 377
• Application: for hand taps and hand reamers
• Shank standard: square to DIN 10 and ISO

FAQ

What standard does the extension comply with?
The extension is produced to DIN 377, ensuring standardised dimensions and compatibility with holders and manual tapping equipment.

Is the extension suitable for M3.5 tapping?
Yes — the part is specified for M3.5 thread use and matched to manual taps and hand reamers intended for that thread size.

What material and finish are used?
The component is made from zinc with a zinc‑plated finish, offering basic corrosion protection for workshop environments.

Will the 4‑square shank fit common holders?
The 4‑square shank conforms to DIN 10 and ISO sizes, providing a secure fit in compatible tool holders and reducing slip during manual tapping.

Can this extension be used in production as well as maintenance?
Yes, the extension’s standard conformity and robust finish make it suitable for workshop maintenance and light production tasks that rely on manual threading tools.

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