1/8" x 28 TPI HSS-Co Machine Tap Form C Vapourised Green Ring Whitworth G Thread, Right-Hand 40° - TECWERK

Take advantage of the combination of cobalt HSS construction, vapour coating and a 40° helix for reliable chip control and long tool life; order the TECWERK machine tap directly via Metav Werkzeuge or request technical advice from our specialists.

TECWERK machine tap DIN 5156C — HSS‑Co, Whitworth G 1/8" x 28 tpi

A TECWERK machine tap DIN 5156C engineered as a universal-form tapping tool for producing Whitworth pipe threads G in blind-hole applications across common industrial materials.

• Cobalt high‑speed steel (HSS‑Co) core
• Vapour‑coated finish, green ring
• Right‑hand 40° helix for chip control
• Designed for blind‑hole Whitworth threads

Extended tool life and consistent cutting performance

The combination of HSS‑Co material and a vapour‑coated surface provides superior wear resistance compared with standard high‑speed taps. This material pairing reduces flank wear and preserves the cutting geometry over longer production runs, which translates into fewer tool changes and improved uptime. The form C (universal) design balances cutting action and robustness, making the tool suitable for mixed batch production where both life and thread quality matter.

Reliable threads in blind‑hole Whitworth applications

Optimised for Whitworth pipe thread G profiles to DIN ISO 228, this tapping tool produces precise internal threads even in blind‑hole situations. The right‑hand 40° helix promotes controlled chip formation and evacuation toward the flanks, reducing the risk of chip packing in interrupted or deep blind holes. The result is consistent thread form and surface finish, especially important where leak‑tight joints or sealed connections are required.

Compatibility with common workshop setups and materials

With a 7 mm shank, the tap integrates easily into standard machine holders and spindle adaptors used across small to medium CNC tapping centres and tapping heads. The tool is specified for machining steel, stainless steel, spheroidal graphite cast iron and non‑ferrous metals, so the same part can be relied upon across a variety of components. The universal geometry simplifies tool selection for mixed‑material work, reducing inventory complexity on the shop floor.

Practical advantages for production planning

The chamfered and flank‑ground cutting edges deliver predictable entry behaviour and promote repeatable cycle times on automated lines. Clear, measurable properties such as material grade (HSS‑Co), helix angle and compliance with the DIN ISO 228 standard support process documentation and quality control. Specifying a standardised tool like this helps streamline procurement and ensures interchangeability across machines, which aids maintenance scheduling and reduces unexpected downtime.

For assured thread quality and dependable supply of the TECWERK HSS‑Co machine tap, contact Metav Werkzeuge in Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930 for ordering and technical assistance

Technical Data

• Article number: 2000867953NW
• SKU: 2000867953NW
• Name: Maschinengewindebohrer DIN 5156C Univ.G 1/8" x 28 HSS‑Co vapourised TECWERK
• Packaging unit: 1
• Manufacturer: TECWERK

Facts

• Shank diameter: 7 mm
• Thread form: G 1/8" x 28 tpi
• Standard: DIN ISO 228

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: vapour‑coated (green ring)
• Type: Universal, Form C
• Helix: right‑hand 40°
• Cutting edge: flank ground
• Application: blind‑hole threads
• Suitable for: steel, stainless steel, spheroidal cast iron, non‑ferrous metals

FAQ

What thread standard does this tap produce?
The tap produces Whitworth pipe threads to DIN ISO 228 specification, suitable for G‑type fittings and connections.

Is the tool suitable for blind holes?
Yes, the tap is designed for blind‑hole threading and the right‑hand 40° helix aids chip control in confined spaces.

Which materials can be machined with this tap?
This HSS‑Co tap is specified for steel, stainless steel, spheroidal cast iron and non‑ferrous metals as listed in the product data.

What is the shank size and how does it integrate with holders?
The tool has a 7 mm shank, compatible with common collets and adaptors used in small to medium tapping heads and machines.

Who supplies this tool and where can it be ordered?
The tool is offered by TECWERK and is available through Metav Werkzeuge; refer to the SKU 2000867953NW when enquiring.

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