G 5/8" x 14 HSS-Co Machine Pipe Tap VA Nitride Vapourised 40° Right-Hand Spiral - TECWERK

Secure reliable pipe-threading in hard-to-machine steels by combining durable HSS‑Co construction with a nitrided, vapour‑deposited surface and a 40° spiral design; order the tap directly via Metav Werkzeuge or consult the technical team for tailored application advice.

Maschinengewindebohrer DIN 5156C VA G 5/8 Zollx14 HSS-Co vapor.ISO 228 TECWERK — machine tap with HSS‑Co and vapour finish

Maschinengewindebohrer DIN 5156C VA G 5/8 Zollx14 HSS-Co vapor.ISO 228 TECWERK is a production‑grade machine tap intended for Whitworth (G) pipe threads to DIN ISO 228 in blind holes, engineered for difficult‑to‑machine steels and high process reliability.

• HSS‑Co for increased heat and wear resistance
• Nitrided, vapour‑deposited surface finish
• Right‑hand 40° spiral with relief‑ground flanks
• Whitworth pipe thread G to DIN ISO 228, blind holes

Precision thread quality for demanding materials

The tap is engineered from HSS‑Co, a cobalt‑alloyed high‑speed steel that sustains hardness at elevated cutting temperatures and extends tool life when machining stainless and heat‑resistant alloys. Combined with a nitrided and vapour‑deposited surface, the tool delivers improved sliding properties and oxidation resistance; this reduces wear and helps maintain consistent thread geometry when working in materials with tensile strength above 850 N/mm². The result is fewer rejects and predictable assembly performance.

Controlled chip flow and reliable blind‑hole performance

A right‑hand 40° spiral geometry actively manages chip formation in blind holes, drawing chips into the flute to avoid jamming and thread damage. The relief‑ground flanks lower friction on the cutting edges, which supports smoother entry and exit from the workpiece and a superior surface finish on the thread flanks. For production environments where downtime is costly, this combination lowers the risk of tap breakage and reduces the need for rework.

Machine‑friendly dimensions and standards compliance

Constructed to DIN 5156C (Form C) standards, the tool integrates seamlessly into automated tapping cycles and machine holders thanks to its common 18 mm shank diameter. The tap produces Whitworth (G) pipe threads to DIN ISO 228, ensuring compatibility with established fittings and gauges. Its standardised form and robust shank simplify tool changes and make it suitable for repeated, high‑volume applications on CNC tapping units.

Practical usage notes to protect tool life

When machining high‑strength stainless or heat‑resistant steels, moderate cutting speeds, adequate lubrication and controlled feed motions are essential to exploit the tool’s properties fully. The vapour‑deposited surface improves lubricant adherence, while the cobalt alloy resists tempering softening. For blind holes, use tapping cycles that allow chip clearance between passes and inspect the thread form after first parts to confirm cutting conditions; this protects process stability and capitalises on the tap’s design advantages.

For precision pipe‑threading with TECWERK reliability, contact Metav Werkzeuge for technical advice or to place an order: info@metav-werkzeuge.com · +49 2822 7131930

Technical data

• Article number: 2000867570NW
• Manufacturer: TECWERK
• Designation: Machine tap DIN 5156C G 5/8" x 14 HSS‑Co TECWERK
• Packaging unit: 1

Facts

• Shank diameter: 18 mm
• Thread: G 5/8" x 14 tpi
• Spiral angle: 40°
• Tensile strength capability: > 850 N/mm²

Special features

• HSS‑Co material
• Form C, Type VA
• Nitrided and vapour‑deposited surface
• Blue ring marking
• Relief‑ground flanks
• Whitworth (G) pipe thread to DIN ISO 228
• For blind holes
• Suitable for hard‑to‑machine materials such as stainless and heat‑resistant steels

FAQ

What material is recommended for use with this machine tap?
The TECWERK machine tap is intended for hard‑to‑machine materials; it is suitable for stainless and heat‑resistant steels with tensile strength greater than 850 N/mm².

Can this tap be used in blind holes?
Yes, the tool is specifically configured for blind‑hole threading thanks to its right‑hand 40° spiral and relief‑ground flanks, which aid chip control and thread quality.

Which thread standard and size does the tap produce?
The tap cuts Whitworth (G) pipe threads to DIN ISO 228 in size G 5/8" with 14 tpi.

What shank diameter is required for machine holders?
The tap is supplied with an 18 mm shank, suitable for standard machine tap holders and quick‑change adapters.

How does the surface treatment affect performance?
The combination of nitriding and a vapour‑deposited finish reduces friction and improves wear resistance, extending tool life in demanding production conditions.

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