G 1/8" x 28 HSS Hand Tap Right-Hand Through/Blind Holes 7mm Shank - TECWERK

Take advantage of a proven combination of HSS durability, precise Whitworth G thread form and a compact 7 mm shank to keep assembly work efficient and reliable; order the tool through Metav Werkzeuge or consult their specialists for application advice.

Hand tap DIN 5157 No.2 G 1/8" x 28 HSS ISO 228 – TECWERK hand tap for parallel pipe threads

The Hand tap DIN 5157 No.2 G 1/8" x 28 HSS ISO 228 is a manual cutting tool designed for producing Whitworth G (parallel) pipe threads to ISO 228 standards, suitable for both through and blind holes in workshop and industrial environments.

• HSS construction for extended tool life
• Whitworth G parallel pipe thread (ISO 228)
• Suitable for through and blind holes
• Shank Ø 7 mm, right-hand cutting

Reliable thread form for secure pipe connections

The Whitworth G thread specification (ISO 228) ensures a consistent, parallel pipe thread that matches standard fittings and sealing elements. The tool’s 28 tpi geometry and DIN 5157 No.2 designation provide predictable flank form and pitch, which translates into fewer leaks and faster assembly. For fabricators and maintenance teams the practical benefit is straightforward: repeatable threads that reduce rework and ensure compatibility with standard BSPP components.

Robust HSS material for demanding steel applications

Manufactured from HSS, the tap is engineered to withstand the stresses of cutting metal with higher tensile strengths. It is specified for steels up to approximately 900 N/mm², which covers a broad range of structural and engineering steels. The right-hand cutting geometry and solid high-speed steel construction contribute to longer tool life and consistent chip formation, reducing downtime for tool changes and improving process economy in serial production or repair work.

Workshop-friendly design for manual and machine use

A 7 mm shank diameter offers secure clamping in standard tap handles or suitable adaptors, while the tool’s suitability for both through and blind holes increases flexibility on the shop floor. The combination of compact shank, standardised thread form and HSS cutting material makes the item practical for maintenance crews, fitting workshops and light production lines where reliable pipe-thread creation is required without specialised machinery.

For secure supply and practical advice on TECWERK taps, contact Metav Werkzeuge in Emmerich by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 to confirm suitability and delivery options

Technical Data

• Article number: 2000867104NW
• Label: Handgewindebohrer DIN 5157 Nr.2 G 1/8 Zollx28 HSS ISO 228 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867104NW

Core data

• Thread: G 1/8" (ISO 228)
• Threads per inch: 28
• Shank diameter: 7 mm
• Material: HSS
• Cutting direction: right-hand
• Suitable for through and blind holes
• Max material strength: approx. 900 N/mm²

Applications / Special features

• Whitworth parallel pipe thread G
• DIN 5157 No.2 specification
• Right-hand cutting
• Shank Ø 7 mm
• HSS cutting material
• For through and blind holes

FAQ

What thread standard does this tap produce?
The TECWERK hand tap produces a Whitworth G parallel pipe thread to ISO 228 standards, specified as G 1/8" with 28 tpi.

Can the tap be used in blind holes?
Yes, the tool is designed for both through and blind holes, with flute geometry suited to controlled chip evacuation.

Is this tap suitable for hardened steels?
The tap is intended for steels up to approximately 900 N/mm²; it is not specified for pre-hardened or high-hardness steels beyond that value.

Which shank size is required for clamping?
Clamping requires a holder or tap wrench compatible with a 7 mm shank for secure retention during manual tapping.

What material is the cutting tool made from?
The cutting material is high-speed steel (HSS), offering a balance of toughness and wear resistance for general workshop use.

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