G 1/4" x 19 Machine Tap HSS-Co Form C Right-Hand 40° Undercut Flanks For Blind Holes DIN ISO 228 - TECWERK

Take advantage of the durable HSS‑Co construction and the optimised right‑hand spiral geometry for reliable pipe threading in blind bores; order the TECWERK machine tap directly via Metav Werkzeuge or contact our specialists for application advice.

TECWERK machine tap DIN 5156C, G 1/4" x 19, HSS‑Co

The TECWERK machine tap G 1/4" is a high‑performance Whitworth pipe thread tap for machine threading to ISO 228, designed for blind‑hole applications.

• HSS‑Co high‑cobalt construction
• Right‑hand spiral 40° for blind bores
• Whitworth pipe thread G to ISO 228
• Shank Ø 11 mm for standard collet fit

Consistent pipe threads for pressured systems

The TECWERK machine tap DIN 5156C G 1/4" x 19 combines a high‑cobalt HSS‑Co substrate with precise Form C geometry to deliver consistent Whitworth pipe threads to ISO 228. This construction increases red hardness and wear resistance, resulting in extended life under the thermal and mechanical stresses typical of industrial threading. The result is a tapping solution that maintains dimensional accuracy over longer production runs, supporting repeatable assembly and sealing performance in pipework and hydraulic components.

Geometry engineered for blind‑hole efficiency

The tap's right‑hand spiral at 40° and flank relief actively evacuate chips from blind holes, reducing the risk of chip jam and breakage. For machining operations where chip control is critical, this geometry shortens cycle times and lowers scrap rates by maintaining uninterrupted cutting action. The spiral design also promotes smoother entry and exit, which helps achieve reliable thread profiles in materials up to approximately 1000 N/mm² tensile strength and in malleable cast iron, translating into measurable process stability on the shop floor.

Machine compatibility and handling benefits

With a shaft diameter of 11 mm, the tool fits common collets and tool holders, easing integration into existing tapping stations and CNC setups. Conforming to DIN 5156C, the tap is suitable for automated and manual machine tapping where defined thread quality is required. The combination of HSS‑Co material and relieved flanks supports occasional regrinding and tool reconditioning, making the tool an economical choice across small batches and larger production runs while preserving thread integrity.

Practical advantages and quality assurance

The tap is specified for Whitworth pipe thread G in the 1/4" size with 19 threads per inch, providing compatibility with standard fittings and components. Its design for blind‑hole applications addresses a common production challenge, offering improved chip removal and reduced tool stress. For operators seeking predictable performance and fewer interruptions, this thread tap provides an effective balance of durability, precision, and process reliability—factors that contribute to lower overall production costs and reduced downtimes.

For reliable pipe‑threading results, choose the TECWERK HSS‑Co machine tap and contact Metav Werkzeuge for order placement or specialist guidance via info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000867511NW
• Brand: TECWERK
• Packaging unit: 1

Facts

• Shank diameter: 11 mm
• Thread: G 1/4" (Whitworth pipe thread)
• Threads per inch: 19 tpi
• Spiral angle: 40°
• Suitable material strength: up to approx. 1000 N/mm²

Special features

• HSS‑Co
• Form C
• Right‑hand spiral 40°
• Flank relief (flanken hinterschliffen)
• Whitworth pipe thread G to DIN ISO 228
• Suitable for blind‑hole threads
• DIN 5156C compliance

FAQ

What materials can this tap machine into?
The TECWERK machine tap is suitable for steels with tensile strength up to approximately 1000 N/mm² and for malleable cast iron, enabling reliable pipe threads in common industrial materials.

Is the tap suitable for blind‑hole threading?
Yes. The right‑hand spiral at 40° and flank relief are specifically designed to evacuate chips from blind bores, improving process security for threaded blind holes.

Which thread standard does the tool produce?
The tool produces a Whitworth pipe thread G 1/4" to DIN ISO 228 with 19 tpi, matching standard pipe fittings and sealing systems.

Can the tap be used in automated CNC tapping stations?
Yes. The tap conforms to DIN 5156C and has an 11 mm shank for standard collet mounting, making it compatible with common machine tapping setups.

What is the article number for ordering and identification?
The article number is 2000867511NW, listed under the TECWERK HSS‑Co machine tap G 1/4" x 19

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