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The EAGLE CUTTING TOOL MHD-390-400-I is a carbon steel metric hex die sized for M39.0 thread diameter with a 4.00mm pitch. Hex dies are used to cut or rethread external threads on bolts, studs, and rod stock. This die fits standard hex die holders and is turned with a wrench or die stock for controlled thread cutting. At 2.18 pounds, it is a solid, shop-grade tool suited for maintenance machinists, pipefitters, and industrial trades requiring large-diameter metric threading capability.
This die is designed for cutting M39.0x4.00 metric coarse threads on external fasteners and threaded rod. Applications include heavy equipment maintenance, structural fabrication, and industrial repair work where large-diameter metric fasteners must be threaded or restored. The hex body profile allows engagement with a standard wrench or adjustable die stock, making it practical for both bench and field use.
Designed for use with standard hex die holders and die stocks that accept large-diameter metric hex dies. Cuts M39.0x4.00 metric coarse external threads per ISO metric thread standards.
Thread cutting with a hex die should be performed by a machinist or qualified trade professional familiar with threading operations. Secure the workpiece firmly before beginning. Apply cutting oil generously to reduce heat and extend die life. Back off the die periodically during cutting to clear chips and prevent binding or die damage.
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