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Description
Technical data for the 1/4 inch left-hand die
| Technical data | ||
|---|---|---|
| Nominal diameter d1 inches/mm | G 1/4 in | 13.16 mm |
| Thread pitch P inches/mm | 19 threads per inch | 1.33 mm |
| Outside diameter d2 | 38 mm | |
| Thickness h1 | 10 mm | |
| Number of chip clearance holes | 4 | |
| Required shaft diameter | 13.03 mm | |
| Thread angle G | 55° | |
| Thread standard | BSP DIN ISO 228 | |
Die 1/4 inch left-hand G HSS – compact tool for left-hand pipe threads
Die 1/4 inch left-hand allows cutting of parallel pipe threads left-hand in the G (BSPP) system with a 55° thread angle. The high-speed steel (HSS) tool offers high durability when machining small-diameter steel, copper, and brass pipes. Compliance with DIN EN 24231 confirms manufacturing precision and compatibility with fittings with left-hand threads.
Advantages of the 1/4 inch left-hand die for specialized applications
- Wear-resistant HSS steel – allows precision machining of materials with tensile strengths up to 800 MPa, even when cutting small threads
- Left-hand BSPP parallel thread profile with a 55° angle – designed for connections in flammable gas installations and systems requiring protection through thread direction
- Thread major diameter 13.16 mm – value determined by the BSP standard for a nominal size of 1/4 inch
- Manufactured to DIN EN 24231 – ensures compatibility with compact gas regulators and valves
- Fine flutes – designed for small diameters, they ensure clean cutting without clogging
The 1/4 inch left-hand die is used for servicing small gas systems, installing regulators for camping gas cylinders, and working on specialized instrumentation and control equipment. This left-hand thread size is also found in older machine pneumatic systems and laboratory equipment requiring protection against self-loosening.
Choose the 1/4 inch left-hand G HSS die when you need to cut a precise left-hand thread on small-diameter tubing. An ideal solution for gas technicians and specialized equipment service technicians.
Frequently asked questions
The nominal value of 1/4 inch (6.35 mm / 0.635 cm) designates the pipe size in the BSP system, not the thread diameter. The pipe standard accounts for wall thickness, so the actual major diameter of the G 1/4 thread is 13.16 mm.
The 1/4 inch BSP left-hand thread is found in small gas cylinder regulators, welding equipment, and precision industrial gas dosing systems. The left-hand thread direction prevents flammable gas connections from being confused with nonflammable gas connections.
Product accessories
Left-hand hand tap 1/4 inch G DIN 5157/2 HSS
Reference: 14328 In stock > 10 items
€10.53
€12.95 brutto
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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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