G 3/8" x 19 HSS-Co Machine Tap Form C Nitride Vaporised Right-Hand 40° Back-Cut For Blind Holes, DIN ISO 228 - TECWERK

Take advantage of a robust HSS‑Co construction and vapourised surface for extended tool life, combined with a 40° right‑hand spiral and relieved flanks to ensure reliable chip control in blind holes; order this specialised tap via Metav Werkzeuge or consult our specialists for application advice.

Machine tapping tool DIN 5156C VA – G 3/8" x 19, HSS‑Co, TECWERK

A machine tap DIN 5156C VA G 3/8" x 19 engineered for producing Whitworth pipe threads in blind holes and for machining hard‑to‑cut stainless, acid‑ and heat‑resistant steels

• HSS‑Co with vapourised surface
• Right‑hand spiral 40° for chip control
• Suited for blind holes in tough steels
• 12 mm shank for secure machine mounting

Built for hard‑to‑machine materials and reliable thread form

The HSS‑Co composition and Form C (Type VA) geometry deliver the thermal stability and wear resistance needed when working with high‑strength alloys. Designed specifically for Whitworth pipe thread G production, the tool copes with materials exhibiting tensile strength above 850 N/mm², including stainless and heat‑resistant steels. The combination of cobalt‑alloyed high‑speed steel and vapourised surface treatment improves hot hardness and reduces flank wear, which translates into fewer tool changes and more consistent production runs in industrial environments.

Precision cutting geometry that improves process efficiency

A right‑hand spiral 40° and flanks relieved design promote controlled chip formation and evacuation, especially important for blind holes, where chips can cause premature tool breakage. The vapourised surface and nitriding enhance sliding properties and corrosion resistance, while the blue ring marking simplifies rapid identification in mixed tool sets. A 12 mm shank ensures secure clamping and accurate concentricity in automated tapping heads, supporting repeatable cycle times and reducing rework rates on critical components.

Conforms to recognised standards and simplifies integration

Manufactured to DIN 5156C and compatible with DIN ISO 228 pipe‑thread specifications, this tap produces the established G 3/8" x 19 tpi Whitworth pipe thread used widely in fluid and pressure systems. The tool is intended for machine tapping operations and is optimised for blind‑hole applications. Compatibility with standard collets and holders makes it straightforward to integrate into existing machining cells, helping to maintain production continuity and reduce setup complexity.

Contact Metav Werkzeuge for tailored application support on TECWERK HSS‑Co taps and to discuss delivery from our Emmerich quality centre — eMail: info@metav-werkzeuge.com | Phone: +49 2822 7131930

Technical data

• Article number: 2000867568NW
• Label: Maschinengewindebohrer DIN 5156C VA G 3/8 Zollx19 HSS‑Co vapor.ISO 228 TECWERK
• Brand: TECWERK
• Packaging unit: 1

Facts

• Shank diameter: 12 mm
• Thread: G 3/8" x 19 tpi
• Right‑hand spiral angle: 40°
• Material: HSS‑Co

Special features

• Form C · Type VA
• Nitrided and vapourised surface finish
• Blue ring identification
• Flanks relieved for reduced friction
• Whitworth pipe thread G per DIN ISO 228
• For blind holes
• Intended for hard‑to‑machine materials (stainless, acid‑ and heat‑resistant steels > 850 N/mm²)

FAQ

What materials is this tap suitable for?
The tap is designed for hard‑to‑machine materials; the TECWERK machine tap (DIN 5156C VA, SKU 2000867568NW) is suitable for stainless, acid‑ and heat‑resistant steels with tensile strengths above 850 N/mm².

Is this tool suitable for blind‑hole tapping?
Yes. The tool geometry, including the right‑hand spiral and relieved flanks, is optimised for blind holes to promote chip evacuation and reduce breakage risk during tapping.

Which thread standard does the tap produce?
The tool produces Whitworth pipe thread G according to DIN ISO 228, specifically G 3/8" x 19 tpi, meeting common industrial specifications for pipe fittings.

How does the vapourised surface treatment help in production?
The vapourised treatment improves surface hardness and sliding properties, extending tool life and lowering the frequency of replacements in continuous manufacturing environments.

What clamping size is required for this tap?
A 12 mm shank requires compatible collets or holders; the robust shank diameter aids concentricity and secure mounting in machine tapping units.

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