32mm Machine Pipe Tap G 1 1/4" x 11 HSS-Co Form B Straight Flute - TECWERK

Take advantage of a robust combination of HSS‑Co toughness and precise Whitworth pipe-thread geometry for reliable series production. The tap's straight flute design and honed flanks reduce rework and extend service life. Order the machine thread tap directly via Metav Werkzeuge or consult our specialists for application support.

Machine thread tap DIN 5156B G 1 1/4 in x 11 HSS‑Co ISO 228 — TECWERK

The machine thread tap DIN 5156B G 1 1/4 in x 11 HSS‑Co ISO 228 is a straight‑fluted, Form B tap for producing parallel Whitworth pipe threads to ISO 228 in through‑thread applications

• HSS‑Co construction for long tool life
• Straight fluted Form B design for clear chip flow
• Whitworth pipe thread G to ISO 228 standard
• Suitable for steels up to approx. 1000 N/mm²

Consistent, accurate Whitworth pipe threading for production use

This tap delivers reproducible thread form in accordance with ISO 228, making it suitable for assembly lines and machine shops that require standardised parallel pipe threads. The HSS‑Co material increases hardness and wear resistance compared with plain high‑speed steel, which translates into longer tool life under continuous use. Because the design is for through threads, setups can be kept simple and cycle times reduced, supporting an efficient production flow with fewer tool changes.

Durable geometry and surface finish reduce rework and downtime

The Form B geometry combined with straight flutes provides reliable chip evacuation when threading longer workpieces or thin‑walled components. Flanks honed to a refined edge reduce the tendency to form burrs and improve the fit of mating parts, lowering post‑machining finishing. A substantial shank diameter of 32 mm ensures secure clamping in machine holders and contributes to dimensional stability during high‑load operations, which benefits repeatability across batches.

Clear application range and material compatibility

Designed for use in steels with tensile strengths up to approximately 1000 N/mm² and in malleable cast iron, this tap covers a broad range of common industrial materials. The G 1 1/4 in x 11 tpi specification refers to a parallel Whitworth pipe thread size frequently used in fluid and pneumatic systems; compliance with recognised standards simplifies quality control and inspection. The tap is intended for machine threading applications in commercial and industrial environments where standard pipe fittings are required.

Integrating the tap into workshop practice with confidence

Selecting a tool with proven geometry and robust material means fewer interruptions and a predictable tool lifecycle. Metav Werkzeuge positions itself as a precision partner with extensive inventory and logistics capacity, ensuring timely delivery from Emmerich and ongoing product availability. For technical clarifications about clamping, machine speed ranges or chip control strategies, consult the product documentation or contact Metav’s technical team for tailored advice.

For reliable Whitworth pipe threading in serial production, choose the TECWERK machine thread tap and contact Metav Werkzeuge for application guidance and procurement at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 2000867506NW
• Description: Machine thread tap DIN 5156B G 1 1/4 in x 11 HSS‑Co ISO 228 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867506NW

Core data

• Shank diameter: 32 mm
• Thread: G 1 1/4 in x 11 tpi
• Standard: DIN 5156B, ISO 228
• Material: HSS‑Co (cobalt alloyed high‑speed steel)

Special features

• Form B, straight fluted
• Flanks honed for reduced burr formation
• Whitworth pipe thread G (parallel) to ISO 228
• For through threads
• Suitable for steels up to approx. 1000 N/mm²
• Suitable for malleable cast iron
• Machine tap design for secure clamping

FAQ

What thread standard does this tap produce?
The tap produces parallel Whitworth pipe threads to ISO 228; the designation G 1 1/4 in x 11 tpi identifies the thread size and pitch.

Which materials is the tap suitable for?
This TECWERK machine thread tap (SKU 2000867506NW) is suitable for steels up to approx. 1000 N/mm² and for malleable cast iron as stated in the technical data.

What does HSS‑Co mean for tool life?
HSS‑Co indicates a cobalt‑alloyed high‑speed steel that offers improved heat resistance and wear performance compared with standard HSS, extending service life in demanding operations.

Is the tap intended for blind holes or through threads?
The tool is specified for through threads, which facilitates chip evacuation and reduces risk of tool breakage in continuous threading tasks.

What clamping diameter is required?
A shank diameter of 32 mm is specified; appropriate holders or collets that accept this diameter should be used to ensure stable, concentric clamping.

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