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Description
Technical data for the G 2 1/2 inch die
| Technical data | ||
|---|---|---|
| Nominal diameter d1 inches/mm | G 2 1/2 inch | 75.19 mm |
| Thread pitch P inches/mm | 11 threads per inch | 2.30 mm |
| Outside diameter d2 | 120 mm | |
| Thickness h1 | 22 mm | |
| Number of chip clearance holes | 10 | |
| Required shaft diameter | 75.18 mm | |
| Thread angle G | 55° | |
| Thread standard | BSP DIN ISO 228 | |

Die 2 1/2 inch G HSS – a professional tool for large-diameter pipe threads
The 2 1/2 inch die is a durable industrial tool for cutting G (BSPP) parallel pipe threads with a 55° profile. Made of high-speed steel (HSS), this inch pipe threading die provides precise threading of steel and cast iron pipes as well as nonferrous metal components. Compliance with DIN EN 24231 ensures full compatibility with industrial fittings used in large-diameter systems.
Key benefits of the 2 1/2 inch pipe threading die
- HSS high-speed steel – enables machining of materials with tensile strengths up to 800 MPa while maintaining cutting edge durability
- BSPP parallel thread with a 55° profile – provides leak-tight connections with a gasket in high-flow systems
- Outside diameter 75.19 mm – conforms to the BSP standard for the nominal size of 2 1/2 inches
- Manufactured in accordance with DIN EN 24231 – confirms dimensional compliance with international pipe thread standards
- Deep flutes – ensure effective chip evacuation when threading large-diameter pipes
The 2 1/2 inch pipe threading die is used in industrial systems requiring high flow capacity — petrochemical installations, district heating, water supply systems in manufacturing plants, and main headers. The tool is suitable for threading steel and cast iron pipes and brass components.
The 2 1/2 inch threading die is essential equipment for industrial installers and maintenance teams. Order a tool that meets the most demanding technical requirements.
Frequently asked questions
The designation 2 1/2 inches (63.5 mm / 6.35 cm) refers to the nominal pipe size, not the thread diameter. The BSP standard accounts for pipe wall thickness, so the actual outside diameter of the G 2 1/2 thread is 75.19 mm.
The G (BSPP) thread has a parallel form with a constant diameter along its entire length. These connections require additional sealing — a flat gasket, an O-ring, or PTFE tape.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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