G 1 1/2" x 11 HSS-Co Machine Tap Form B Straight Flute Back‑Tapered Threads DIN ISO 228 - TECWERK

Take advantage of the combination of HSS‑Co material, a Whitworth G thread to DIN ISO 228, and a robust 36 mm shank for consistent, machine-ready pipe threads; order the tool directly via Metav Werkzeuge or contact our consultants for application advice.

Machine pipe tap DIN 5156B G 1 1/2 in x 11 HSS‑Co ISO 228 by TECWERK — straight‑flute form B for through Whitworth pipe threads

The Machine pipe tap DIN 5156B G 1 1/2 in x 11 HSS‑Co is designed for producing parallel Whitworth pipe threads (G) to DIN ISO 228 in through-hole applications, suitable for a range of steels and temper cast iron.

• HSS‑Co for elevated heat resistance
• Whitworth G thread to DIN ISO 228
• Straight flutes with flank grinding
• Shank Ø 36 mm for secure machine mounting

Consistent Whitworth pipe threads for standard fittings

The tap produces Whitworth G pipe threads manufactured to DIN ISO 228, which ensures compatibility with standard parallel pipe fittings. This conformity simplifies assembly and inspection in production environments where interchangeability is essential. The thread form is particularly suited to through threads, allowing a clean, continuous cut along the workpiece. The standardised geometry reduces the risk of mis-mating and supports consistent sealing performance when used with appropriate seals or gaskets.

Durable cutting edge and controlled chip formation

Made from HSS‑Co, the tool offers improved red‑hardness and wear resistance compared with conventional high‑speed steels, supporting longer tool life in demanding operations. The Form B design with straight flutes and flank‑ground cutting edges promotes reliable chip evacuation in long through threads, lowering the risk of jamming and breakage. For workshops processing steels up to approximately 1000 N/mm² and temper cast iron, this combination yields repeatable thread quality while keeping regrind intervals predictable.

Machine-ready shank and operational reliability

A 36 mm shank diameter provides a stable connection to tapping heads and machine spindles, reducing runout and helping maintain concentricity throughout the machining cycle. The robust shaft geometry is intended for mechanical tapping or power tapping attachments, enabling efficient high‑volume production. Correct clamping and alignment, combined with adequate cutting fluid, will preserve the cutting geometry and improve cycle consistency for serial manufacturing.

Workshop supply and service that supports precision

Selecting a TECWERK tap via Metav aligns product quality with dependable supply: Metav’s Emmerich location functions as a quality filter for the European market, supplying precision tools alongside expert advice. The proposition combines a broad product range with traceable standards and prompt availability, which benefits procurement strategies that prioritise uptime and predictable tool performance. This approach reduces supplier multiplicity and simplifies reordering in industrial and trade workshops.

For reliable Whitworth pipe threads, order the TECWERK machine pipe tap through Metav Werkzeuge in Emmerich or contact our specialists at info@metav-werkzeuge.com / +49 2822 7131930 for application guidance

Technical Data

• Article number: 2000867507NW
• Designation: Machine pipe tap DIN 5156B G 1 1/2 in x 11 HSS‑Co ISO 228
• Manufacturer: TECWERK
• Packing unit: 1

Facts

• Shank diameter: 36 mm
• Thread: G 1 1/2 in × 11
• Material grade: HSS‑Co
• Standard: DIN 5156B, DIN ISO 228

Special features

• Form B
• Straight flutes
• Flank‑ground cutting edges
• Whitworth pipe thread G to DIN ISO 228
• For through threads
• Suitable for steels up to approx. 1000 N/mm² and for temper cast iron

FAQ

What materials can this tap machine?
The TECWERK machine pipe tap is suitable for steels up to approximately 1000 N/mm² and for temper cast iron, as stated in the technical data.

Is this tap suitable for through holes or blind holes?
This tap is designed for through threads and is optimised for uninterrupted chip evacuation in through‑hole applications.

Which thread standard does the tool follow?
The tool produces Whitworth G threads to DIN ISO 228, ensuring compatibility with standard parallel pipe fittings.

What advantages does HSS‑Co offer for this tap?
HSS‑Co provides higher red‑hardness and improved wear resistance, which increases tool life under the thermal and mechanical loads typical of pipe‑thread cutting.

What machine interface does the tap require?
The tap has a 36 mm shank for secure clamping in tapping heads or machine spindles, supporting stable operation and reduced runout.

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