1/4" x 19 TPI Machine Tap HSS-Co Form B Straight Flute Vapourised Green Ring, Whitworth G Thread DIN ISO 228 - TECWERK

High wear resistance from HSS‑Co, universal Form B geometry and a straight‑fluted design ensure consistent, machine‑ready thread production for Whitworth pipe fittings; ideal for mixed batch work. Order through Metav Werkzeuge or consult our specialists for suitability and delivery.

TECWERK machine tap G 1/4" x 19 tpi (DIN 5156B) — HSS‑Co, universal

The TECWERK machine tap G 1/4" x 19 is a universal Form B machine tap designed for producing Whitworth pipe threads (G) to DIN ISO 228 in steels, stainless steels, spheroidal cast iron and non‑ferrous metals.

• HSS‑Co alloy for enhanced wear resistance
• Universal Form B geometry for machine use
• Straight flutes with relief‑ground flanks
• Suitable for steel, stainless steel and non‑ferrous metals

Durable alloy and geometry for high uptime

Constructed from HSS‑Co (cobalt‑alloy high‑speed steel), the tool combines hardness with toughness to resist wear under repeated cycle use. The Form B geometry is optimised for machine tapping and helps maintain thread accuracy over longer production runs, reducing tool change frequency. The vapour‑treated surface and the green ring identification speed up handling in busy workshops while contributing to corrosion resistance and easier inventory recognition.

Reliable pipe threads that meet standards

The tool cuts Whitworth G threads in accordance with DIN ISO 228, delivering parallel pipe threads suited to a wide range of hydraulic and pneumatic fittings. A dedicated cutting chamfer for through threads ensures clean chip evacuation and consistent start‑up, which translates into fewer rejects and lower rework. For applications where joint reliability matters, this geometry provides predictable, repeatable thread form suitable for assembly with common sealing methods.

Machine compatibility for efficient production

With a shank Ø 11 mm and straight‑fluted design, the tap is built for machine spindles and automated tapping units. Straight flutes and relief‑ground flanks promote smooth chip flow and lower tapping torque, enabling faster cycle times and reducing strain on tap holders. The tool’s universal character makes it suitable for mixed‑material batches, helping streamline tooling choices across varied workpieces.

Clear identification and material versatility

Marked for quick recognition, the tool is intended for use in steel, stainless steel, spheroidal cast iron and non‑ferrous metals, covering most workshop requirements for pipe‑threaded connections. The specification 1/4" x 19 tpi matches common Whitworth pipe sizes; the combination of material choice and design gives a balance between cutting performance and component finish, ensuring dependable thread quality even in repetitive operations.

Choose TECWERK machine taps for consistent, industrial‑grade thread production and contact Metav Werkzeuge in Emmerich for tailored advice, availability and secure supply at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867942NW
• Item: Machine tap G 1/4" x 19 tpi, DIN 5156B
• Manufacturer: TECWERK
• Packing unit: 1
• UID: 2000867942NW

Facts

• Shank diameter: 11 mm
• Thread: G 1/4" × 19 tpi
• Standard: DIN ISO 228

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Form B, type universal
• Vapour‑treated coating
• Green ring identification
• Straight flutes
• Relief‑ground flanks
• Cutting chamfer for through threads
• Suitable for steel, stainless steels, spheroidal cast iron, non‑ferrous metals

FAQ

What thread standard does this tap produce?
The tap produces Whitworth G threads in line with DIN ISO 228, suitable for standard pipe connections and fittings.

Which materials can be machined with this tool?
The TECWERK tap is specified for steel, stainless steel, spheroidal cast iron and non‑ferrous metals, offering broad application across workshop and industrial parts.

What does the green ring signify?
The green ring is a visual identifier for the vapour‑treated, machine‑grade variant and assists with rapid tool selection in multi‑tool environments.

Is the tap suitable for machine tapping units?
Yes — the universal Form B geometry, straight flutes and shank Ø 11 mm make the tool compatible with standard machine spindles and tapping holders for efficient production.

What are the key cutting features for through threads?
The tap includes a dedicated cutting chamfer for through threads that promotes clean chip evacuation and consistent thread starts for reduced rework.

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