FANAR DIES tubular G 1/2A DIN24231 — tubular cutting die, G 1/2A thread

FANAR DIES tubular G 1/2A DIN24231 is a tubular cutting die engineered for forming and restoring external G 1/2A (BSP) threads on pipes, fittings and connectors. Manufactured to the DIN24231 designation, this tool provides the cutting geometry and rigidity required to produce consistent thread profiles and dimensional accuracy in workshop and field applications. The tubular design allows it to pass over shafts and pipe ends for threading close to shoulders and fittings.

Advantages

The tubular cutting die delivers precise thread form and repeatable pitch accuracy in compliance with DIN24231 requirements, ensuring compatibility with standard G 1/2A fittings. Its construction supports stable cutting action and reduced risk of cross-threading when used with proper alignment. The tool's open tubular shape enables threading where full solid dies would not reach, and its hardened cutting edges maintain performance and wear resistance during routine maintenance and production use.

Suitable for

• Machining or repairing external G 1/2A (BSP) threads on pipe ends
• Plumbing installation and service work on valves and fittings
• Workshop and maintenance tasks requiring standardized external pipe threads
• Producing consistent thread profiles on connectors and adapters

Key specifications

• Thread form: G 1/2A (BSP external thread)
• Standard conformity: DIN 24231 thread-cutting die designation
• Tool type: tubular (split) cutting die for external threads
• Intended use: threading or restoring external pipe threads

How to use

Select the FANAR tubular die that matches the required G 1/2A thread size and secure it in an appropriate die stock or holder designed for tubular dies. Align the die squarely with the pipe or shaft end and apply steady forward pressure while turning the die in the correct direction for cutting threads. Use suitable cutting lubricant to reduce friction and improve chip evacuation. Periodically reverse the die slightly to clear chips and check thread fit on the mating part, continuing until the required thread length and quality are achieved.

Usage recommendations

For best results, use a compatible die stock with axial alignment support and apply a suitable cutting oil. Inspect the pipe end for burrs and ensure the starting chamfer is present to facilitate engagement. After cutting, clean chips and apply corrosion protection if the threaded connection will be exposed to moisture.