1/8" x 28 TPI Pipe Thread Tap HSS-Co Form B Straight Flute Vapourised Green Ring, Through-Hole Chamfer ISO 228 - TECWERK

Take advantage of a versatile HSS‑Co construction and straight‑fluted geometry for reliable Whitworth pipe-threading; the robust relief‑ground flanks and through‑thread chamfer support continuous production. Order the TECWERK tap directly via Metav Werkzeuge or consult our specialists if further technical details are required.

TECWERK Machine Tap G 1/8" x 28 – HSS‑Co, Form B (Universal)

The TECWERK machine tap G 1/8" x 28 is a universal Form B tap engineered for producing parallel Whitworth pipe threads (G) in through‑hole applications across a wide range of metals

• HSS‑Co straight‑fluted cutting geometry
• Parallel Whitworth pipe thread G to DIN ISO 228
• Relief‑ground flanks for improved wear resistance
• Through‑thread chamfer for clean chip evacuation

Reliable pipe‑thread production for mixed materials

The universal Form B design combines a robust cutting profile with a cobalt high‑speed steel (HSS‑Co) body to create a balance between toughness and edge retention. This geometry supports consistent thread form on parallel Whitworth pipe threads, specified to DIN ISO 228, so mating components assemble precisely. For manufacturing environments where different materials appear in the same production run, this configuration reduces tool changeovers and simplifies tooling lists, contributing directly to higher throughput and fewer interruptions.

Reduced risk of tap failure and clearer chips

The straight‑fluted design, paired with relief‑ground flanks, improves cutting stability and reduces radial loads during tapping. The incorporated through‑thread chamfer is intended for through holes and aids chip formation and evacuation, lowering the chance of clogging and breakage in continuous operations. These features collectively lead to longer tool life and fewer rejects, supporting a measurable improvement in operational reliability and machining economics.

Practical compatibility and handling in the shop

Marked with a green identification ring and supplied with a 7 mm shank, the tool fits common collets and holders found in workshop and machine‑tool setups. The tap is suitable for steel, stainless steel, spheroidal cast iron and non‑ferrous metals, enabling a single tool to cover many typical maintenance and production tasks. The familiar shank diameter simplifies storage and sorting in tool cabinets, while the universal style ensures straightforward replacement in multi‑station environments.

Clarity for purchasing and integration

Specification‑centred procurement benefits from clear standard references: DIN 5156B and DIN ISO 228 designate the manufacturing and thread form expectations, which assists planning for quality control and assembly. The HSS‑Co material choice supports higher cutting temperatures and improved wear resistance compared with standard high‑speed grades, reducing consumable costs over time. For customers seeking straightforward integration into existing processes, this tap provides a predictable, durable option without requiring specialised equipment.

For dependable Whitworth pipe‑thread tapping with TECWERK quality, contact Metav Werkzeuge in Emmerich for ordering and tailored advice; Metav’s specialists can confirm suitability for specific materials and production requirements.

Technical data

• Article number: 2000867941NW
• Manufacturer: TECWERK
• Label: Maschinengewindebohrer DIN 5156B Univ.G 1/8 Zollx28 HSS‑Co vap.ISO 228 TECWERK

Facts

• Thread: G 1/8" × 28 tpi
• Shank Ø: 7 mm
• Pack unit: 1

Special features

• HSS‑Co (cobalt high‑speed steel)
• Form B, universal tapping type
• Vapourised surface treatment, green ring identification
• Straight‑fluted geometry
• Relief‑ground flanks
• Parallel Whitworth pipe thread G per DIN ISO 228
• Through‑thread chamfer for through holes
• Suitable for steel, stainless steel, spheroidal cast iron and non‑ferrous metals

FAQ

What thread form does this tap produce?
The tool produces parallel Whitworth pipe threads G in accordance with DIN ISO 228, making it suitable for standard pipe‑fitting applications.

Which materials can be machined with this tap?
This TECWERK machine tap is specified for steel, stainless steel, spheroidal cast iron and non‑ferrous metals, offering broad material compatibility for general workshop use.

What is the shank diameter and how is the tool identified?
The tap has a shank diameter of 7 mm and features a green identification ring to simplify selection and storage.

Is this tap suitable for through‑hole threads?
Yes, the tap includes a through‑thread chamfer specifically intended for clean chip evacuation in through‑hole applications.

Which standards describe the tool and thread?
The tap corresponds to DIN 5156B for the tool form and to DIN ISO 228 for the Whitworth pipe‑thread G specifications.

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