1/2" x 14 TPI Machine Tap DIN 5156C HSS-Co Vapourised Green Ring Flute Relief, G Thread ISO 228 - TECWERK

Benefit from the HSS‑Co wear resistance, the efficient chip evacuation of the 40° right‑hand spiral, and the universal Form C geometry for consistent Whitworth G threads; order the part directly via Metav Werkzeuge or consult the specialists for application advice.

Machine tap DIN 5156C – Whitworth pipe thread G 1/2" x 14, HSS‑Co (TECWERK)

The Machine tap DIN 5156C for Whitworth pipe thread G 1/2" x 14 (HSS‑Co) is a universal, spiral‑fluted machine tap engineered for blind‑hole G threads in steels, stainless steels, ductile iron and non‑ferrous metals

• HSS‑Co for high wear resistance
• Right‑hand 40° spiral flute for chip removal
• For blind holes and pipe threads G
• 16 mm shank for secure machine clamping

Industrial‑grade cutting performance for consistent pipe threads

The Machine tap DIN 5156C combines a cobalt‑alloy high‑speed steel (HSS‑Co) body with a Form C universal geometry to deliver reliable thread forms across mixed production runs. The vapour‑treated finish increases surface hardness and wear resistance, extending tool life under intermittent loads and higher temperatures. For shops producing Whitworth pipe threads, the adherence to DIN ISO 228 ensures compatibility with standard fittings and assemblies, reducing rework and assembly failures. The universal design maintains dimensional stability across different workpiece materials, which benefits batch processing and reduces tool changes.

Controlled chip flow and safe blind‑hole tapping

A 40° right‑hand spiral flute coupled with flank‑honed cutting edges provides active chip control and improved surface quality when working in blind holes. The spiral angle promotes chip evacuation into the flutes rather than packing at the thread root, lowering the risk of tap breakage and minimising operator interruptions. The flank honing refines the cutting geometry to reduce burr formation and improve thread fit, which is particularly valuable for internal pipe threads that must seal reliably. These features combine to improve process uptime and deliver threads that meet both mechanical and sealing requirements.

Machine integration and material versatility for workshop use

The tool offers a 16 mm shank for secure clamping in standard holders and automatic tapping spindles, supporting straightforward integration into existing machining cells. It is suitable for a broad range of materials: general steels, stainless steels, spheroidal (ductile) cast iron and non‑ferrous metals, making it a flexible choice for mixed‑material production environments. The Whitworth pipe form (G 1/2" x 14 tpi) is explicitly designed for pipe‑threaded connections; using the correct tap geometry reduces post‑process inspection and ensures interchangeability with standard pipe fittings. Together, these traits support efficient, repeatable production workflows.

Choose the TECWERK machine tap via Metav Werkzeuge for assured Whitworth G thread quality and reliable supply — contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability for specific applications

Technical data

• Article number: 2000867956NW
• Product label: Machine tap DIN 5156C universal G 1/2" x 14 HSS‑Co vap. ISO 228 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867956NW

Core specifications

• Shank diameter: 16 mm
• Thread: G 1/2" x 14 tpi
• Spiral angle: 40°
• Shank Ø: 16 mm

Special features

• HSS‑Co material
• Form C universal geometry
• Vapour‑treated finish
• Green ring identification
• Right‑hand spiral 40°
• Flank‑honed cutting edges
• Whitworth pipe thread G to DIN ISO 228
• Designed for blind‑hole tapping
• Suitable for steel, stainless steel, ductile cast iron and non‑ferrous metals

FAQ

What thread form does this tap cut?
The TECWERK machine tap cuts a Whitworth pipe thread G 1/2" x 14 tpi in accordance with DIN ISO 228, providing compatibility with standard pipe fittings.

Which materials are suitable for machining with this tap?
This tap is made in HSS‑Co and is suitable for general steels, stainless steels, spheroidal (ductile) cast iron and most non‑ferrous metals, delivering reliable performance across these materials.

Is the tap suitable for blind‑hole threads?
Yes, the 40° right‑hand spiral and flute design are optimised for blind‑hole applications, promoting chip evacuation and reducing the risk of breakage.

What machine clamping is required for use?
The tap has a 16 mm shank, compatible with common collets and holders used in machine tapping spindles and multi‑spindle machines.

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