1" G Thread Machine Tap DIN 5156C HSS-Co Form C Right-Hand 40° Undercut Flanks For Blind Holes, G 1"×11 ISO 228 - TECWERK

Reliable thread production and extended tool life result from the combination of HSS‑Co construction and a 40° right‑hand spiral, ensuring efficient blind‑hole tapping in materials up to ≈1000 N/mm². Order the machine pipe tap directly via Metav Werkzeuge or consult our specialists for technical guidance.

Machine pipe tap DIN 5156C G 1 inch x 11 HSS‑Co — machine tap for Whitworth pipe thread, TECWERK

The Machine pipe tap DIN 5156C G 1 inch x 11 HSS‑Co is a robust machine tap designed for producing Whitworth G pipe threads to ISO 228, optimised for blind‑hole applications and high‑strength steels.

• HSS‑Co for enhanced wear resistance
• 40° right‑hand spiral for blind‑hole tapping
• Whitworth G thread to ISO 228
• 25 mm shank for secure machine clamping

Precise pipe threads for secure, standardised connections

The tap produces Whitworth G pipe threads in accordance with ISO 228, delivering parallel pipe threads where a reliable mechanical fit is essential. The HSS‑Co composition offers a balance of hardness and toughness, which maintains cutting geometry under load and high temperatures. For assemblies that require standardised interfacing and replaceable seals, this tool ensures repeatable thread profiles and reduces rework by producing accurate threads in blind bores.

Engineered for fast, reliable blind‑hole tapping

A 40° right‑hand spiral directs chips away from the cutting edge, significantly improving evacuation in blind‑hole operations and lowering torque peaks during tapping. The flute geometry and flank honing reduce the risk of chip jamming, enabling smoother cycles on CNC and automatic tapping heads. Combined with a 25 mm shank, the tool offers secure clamping for stable rotation and concentricity, which translates into shorter cycle times and fewer tool changes in production environments.

Durable design and broad material compatibility

Constructed in HSS‑Co and specified as Form C, the tap is built to withstand the demands of machining steels up to approximately 1000 N/mm² and temper cast iron. The hardened, honed flanks extend service intervals by improving edge stability and chip flow. This durability lowers total production interruptions and supports consistent thread quality across runs, offering cost efficiency through longer tool life and reduced scrap rates.

For tailored advice on selecting the right TECWERK machine pipe tap or to secure this HSS‑Co G 1" x 11 tap for production use, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• Article number: 2000867515NW
• Description: Maschinengewindebohrer DIN 5156C G 1 Zollx11 HSS-Co ISO 228 TECWERK
• Manufacturer: TECWERK

Facts

• Shank diameter: 25 mm
• Thread designation: G 1" x 11
• Spiral angle: 40°
• Suitable tensile strength: up to approx. 1000 N/mm²
• Packaging unit: 1

Special features

• Material: HSS‑Co
• Form C
• Right‑hand spiral for chip evacuation
• Flanks honed (flanken hinterschliffen)
• Whitworth pipe thread to DIN ISO 228
• Intended for blind‑hole threads
• Suitable for steel and temper cast iron

FAQ

Which thread standard does this tap produce?
The tap produces Whitworth G pipe threads in line with ISO 228, suitable for standardised parallel pipe connections.

Is this tap suitable for blind‑hole applications?
Yes — the 40° right‑hand spiral and honed flanks make the TECWERK machine pipe tap especially effective for blind‑hole tapping.

Which materials can be machined with this tap?
The tool is specified for steels up to approximately 1000 N/mm² and for temper cast iron, providing reliable performance in these materials.

What is the shank size and how is it clamped?
The tap has a 25 mm shank, designed for secure clamping in machine tool holders and tapping heads to ensure concentricity.

What is the SKU for ordering and reference?
The SKU is 2000867515NW for the TECWERK machine pipe tap DIN 5156C G 1" x 11.

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