G 1/4" x 19 HSS-Co Machine Pipe Tap Form B Nitride Vaporised Straight Flute For Stainless And Heat-Resistant Steels, 11mm Shank - TECWERK

Benefit from a durable HSS‑Co construction with a nitride and vapourised surface for longer tool life and consistent thread quality; engineered for Whitworth G 1/4" pipe threads and through‑hole applications in hard‑to‑machine stainless and heat‑resistant steels. Order the part directly via Metav Werkzeuge or consult Metav specialists for application guidance.

Machine tap DIN 5156B VA — G 1/4" x 19, HSS‑Co, vapourised (TECWERK)

A Machine tap DIN 5156B VA G 1/4" x 19 HSS‑Co vapourised is designed for forming Whitworth pipe threads (G) in through‑holes, with geometry and surface treatment optimised for tough, heat‑resistant materials

• HSS‑Co construction for high wear resistance
• Nitride and vapourised surface for extended life
• Straight flute with flank relief for reliable chip control
• Whitworth G 1/4" thread, suitable for through holes

Consistent performance in hard‑to‑machine materials

The combination of HSS‑Co substrate and nitride plus vapourised surface treatment delivers improved resistance to abrasion and thermal wear, which matters when machining stainless and heat‑resistant steels with tensile strengths above 850 N/mm². This composition reduces flank wear and lowers the frequency of regrinds, meaning fewer tool changes and less unplanned machine downtime. For production environments, the result is a more reliable cycle time and predictable component tolerance achievement.

Accurate Whitworth pipe threads with standard conformity

Designed to produce Whitworth G pipe threads in accordance with ISO 228 and the DIN 5156B form, the geometry ensures proper thread form and assembly fit for piping and hydraulic connections. The designation for through‑thread applications supports uninterrupted chip evacuation and consistent form across the full length of the thread. Specifying a tap that complies with recognised standards reduces rework and supports interchangeability across suppliers and assemblies, which is critical for serviceable joints and sealing reliability.

Geometry and surface finish that aid machining quality

The tool’s straight‑flute design, combined with flank relief (flank‑honed) and a visible blue ring identification, improves chip flow for through‑hole tapping and reduces the risk of jamming. The vapourised finish is a thin, thermally deposited layer that enhances surface hardness and lowers friction without altering core toughness, which helps to maintain thread accuracy during long runs. A shank diameter of 11 mm provides stable clamping in standard holders, enabling repeatable concentricity and reducing run‑out that can otherwise affect thread quality.

Practical advantages at the workshop and on the shop floor

For workshops dealing with corrosive or high‑temperature alloys, this tool brings a balance of wear resistance and cutting reliability. The specified configuration—Form B, Type VA—is particularly suitable where machining of corrosion‑resistant steels is frequent. Fewer tool changes and predictable tool life translate into lower process costs over time, while the tool’s compatibility with standard tapping fixtures simplifies integration into existing workflows. For users requiring verifiable performance, the technical conformity and material choice support long‑term production planning and quality assurance.

Choose the TECWERK HSS‑Co machine tap via Metav Werkzeuge for robust, standard‑compliant Whitworth pipe threading; contact Metav Werkzeuge for tailored advice and order support at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000867494NW
• Brand: TECWERK
• Packaging unit: 1
• Label: Machine tap DIN 5156B VA G 1/4" x 19 HSS‑Co vapourised

Numbers / Core technical data

• Shank diameter: 11 mm
• Thread pitch: 19 tpi (threads per inch)
• Nominal thread: G 1/4"
• Standard: DIN 5156B, ISO 228

Special features

• Material: HSS‑Co
• Type: VA, Form B
• Surface: nitride and vapourised finish
• Flute: straight flute
• Flanks: flank‑relieved (flank‑honed)
• Identification: blue ring
• Application: through threads
• Suitable for: hard‑to‑machine materials, e.g. stainless and heat‑resistant steels > 850 N/mm²

FAQ

What materials is this tap suitable for?
The TECWERK machine tap is designed for hard‑to‑machine materials, including stainless and heat‑resistant steels with tensile strengths above 850 N/mm², thanks to its HSS‑Co composition and surface treatments.

Is the thread form compatible with common pipe fittings?
Yes, the tool produces Whitworth G pipe threads in accordance with ISO 228 and DIN 5156B, ensuring compatibility with standard pipe fittings and assemblies.

How does the vapourised finish help in production?
The vapourised finish provides a thin, hard surface layer that reduces friction and wear, improving tool life and maintaining thread dimensional stability during longer production runs.

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