105mm Tool Extension DIN 377 For Hand Taps Zinc Coating - TECWERK

A compact, standardised extension that increases manual reach and secures a positive drive for threading tools: the combination of DIN 377 conformity, a 4.3 mm square shank and zinc-plated corrosion protection supports reliable manual tapping and reaming in workshop environments. Order via Metav Werkzeuge or consult the specialists for integration advice.

Tool extension DIN 377, 4-sided 4.3 mm, zinc — TECWERK

A Tool extension DIN 377, 4-sided 4.3 mm, zinc designed for use with hand taps and hand reamers to extend reach and maintain a secure square-shank connection in manual threading tasks

• Zinc-plated for corrosion protection
• Compatible with DIN 377 tapping tools
• 105 mm total length for extended reach

Reach deeper, work cleaner

The additional 105 mm overall length provides tangible benefit when threads are required beyond the immediate edge or within recessed bores. By adding a reliably dimensioned extension bar, manual threading operations gain access without the need for longer tap stocks or improvised extensions. This reduces the need for awkward handling and preserves tool alignment, improving hole quality and lowering scrap risk. The measured extension supports predictable results in repetitive manual tasks.

Standardised square drive for positive torque transfer

Conforming to DIN 377 and matching the specified square profile ensures secure engagement with conventional tap wrenches and holders. The 4.3 mm square drive follows the recognised interface for small hand taps and hand reamers, guaranteeing compatibility with existing tooling. This standardisation converts applied manual torque into efficient cutting action, diminishing slippage and improving thread consistency when working with a wide range of common materials.

Corrosion resistance that retains fit and finish

A zinc-plated surface finish offers basic corrosion protection suited to workshop conditions where occasional humidity and coolant residues occur. The zinc coating helps to preserve dimensional accuracy at the shank and drive faces, maintaining a secure fit over repeated use. For routine workshop maintenance, this protective layer supports longer service life compared with bare components while keeping handling and cleaning straightforward.

Simple integration into everyday workflows

Built for manual threading work, the extension is expressly for use with hand taps and hand reamers, enabling quick changes between tool and extension without additional adapters. Its compact form and familiar square shank geometry make it easy to store, identify and deploy in mixed tool assortments. The straightforward design reduces downtime during set-up and contributes to a smoother, more efficient workshop routine.

For supply enquiries or technical clarifications on the TECWERK tapping extension, contact Metav Werkzeuge in Emmerich for prompt advice and reliable delivery via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867906NW
• Item label: Tool extension DIN 377 4-sided 4.3 mm zinc
• Brand: TECWERK
• Packaging unit: 1

Key measurements

• Total length: 105 mm
• Square shank: 4.3 mm
• Packaging unit: 1

Materials & features

• Material: Zinc
• Coating: Zinc-plated
• For: hand taps and hand reamers
• Standard: DIN 377
• Square profile to DIN 10 and ISO

FAQ

Is this extension suitable for use with standard tap wrenches?
Yes. The extension is manufactured to DIN 377 and the 4.3 mm square shank is intended for positive engagement with standard tap wrenches and holders

Can the extension be used with hand reamers as well as taps?
It is specified for use with both hand taps and hand reamers, providing additional reach while keeping the standard square drive interface

What material and coating are used on the extension?
The extension is made from zinc with a zinc-plated finish to provide basic corrosion protection suitable for workshop use

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