1" G 11 TPI HSS Tap Form B Closed Slotted Tolerance A, DIN EN 24231 - TECWERK

Take advantage of the HSS cutting material and DIN EN 24231 conformity for consistent, high-quality thread profiles; the closed, pre-slotted Form B reduces chip build-up and ensures reliable cutting in steels up to ≈800 N/mm². Order the die directly via Metav Werkzeuge or ask our consultants if needed.

Die Form B G 1in x11 HSS A — TECWERK

A Die Form B G 1in x11 HSS A for producing parallel Whitworth pipe threads (G) to DIN standards, designed for workshop and industrial use.

• High-speed steel cutting material HSS
• Conforms to DIN EN 24231 standard
• For steels up to approx 800 N/mm²
• Closed, pre-slotted Form B, 18 mm height

Consistent pipe-thread quality through standards-based design

The DIN EN 24231 conformity combined with the thread specification to DIN ISO 228 delivers predictable mating results for parallel pipe threads. Specification tolerance A indicates a tighter dimensional tolerance, which translates into more consistent fits and fewer rejects during assembly. For procurement and production planning this means reduced rework and a more predictable assembly process. The combination of standard compliance and measured tolerances supports traceable quality in repetitive manufacturing operations.

Durable cutting performance and material suitability

Manufactured from HSS, the tool offers a balance of toughness and wear resistance appropriate for serial workshop use. The geometry is optimised to cut Whitworth parallel pipe threads G and is suitable for steels with tensile strengths of up to ≈800 N/mm², ensuring effective performance on commonly used construction and engineering steels. The closed, pre-slotted Form B design assists chip evacuation and stabilises the cutting edges, which extends service life and reduces the frequency of regrinding or replacement.

Efficiency and handling benefits on the shop floor

The compact 18 mm section height and robust Form B construction provide a stable engagement with the workpiece, lowering the risk of tool run-out and improving thread concentricity. Time savings arise from fewer corrective operations and consistent first-pass cuts; this rational advantage supports higher throughput in small-batch and maintenance tasks alike. The tool’s specification is straightforward to integrate into existing tooling lists and maintenance schedules, enabling clear stock-keeping and reorder planning.

Selecting and maintaining the right die for the task

The size designation (G 1in x11) denotes a parallel Whitworth pipe thread with 11 threads per inch; compatibility with mating connectors follows the DIN ISO 228 convention for parallel pipe threads. For optimal results, match the die to the material’s tensile rating and use appropriate cutting lubricant for steel to preserve the HSS cutting edges. Regular inspection for wear and light regrinding when necessary will preserve thread quality and extend usable life, providing long-term cost-efficiency for the workshop.

Discuss application requirements or secure the TECWERK die through Metav Werkzeuge’s consultancy—contact Metav Werkzeuge in Emmerich for technical advice or to arrange a supply.

Technical data

• Article number: 2000867785NW
• Item: Schneideisen Form B G 1 Zollx11 HSS A TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867785NW

Facts

• Height: 18 mm
• Material strength capacity: approx 800 N/mm²
• Thread size: G 1 in × 11 tpi
• Tolerance field: A

Special features

• Cutting material: HSS
• Standard: DIN EN 24231
• Whitworth parallel pipe thread G to DIN ISO 228
• Closed, pre-slotted Form B

FAQ

What materials is this die suitable for?
The Die Form B G 1in x11 HSS A is specified for use on steels up to approximately 800 N/mm² tensile strength and performs reliably within that range.

Which standards does this tool comply with?
This TECWERK die conforms to DIN EN 24231 and cuts threads according to DIN ISO 228 for parallel Whitworth pipe threads (G), with tolerance field A.

What does 'closed, pre-slotted Form B' mean in practice?
Closed, pre-slotted Form B describes a die geometry that maintains full flank support while providing slots to allow chip passage, reducing jamming and improving surface finish on produced threads.

How is the thread size G 1in x11 interpreted?
The designation indicates a parallel Whitworth pipe thread G with a nominal 1 inch size and 11 threads per inch; mating parts should comply with DIN ISO 228 for compatibility.

Can the die be reconditioned after wear?
The HSS cutting edges can be carefully re-sharpened in line with workshop practices; observing correct geometry and preparation will preserve thread quality and extend tool life.

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