Metric Right Hand Round Threading Die M39 x 4.0mm, Alloy Tool Steel M39 x 4.0 Coarse Pitch Circular Threading Tool for Large Bolt Repair and Industrial Metalworking, 1 Piece

This M39 x 4.0mm Right Hand Round Die is an essential tool for professional machinists and industrial maintenance crews. With an outside diameter designed for high-torque applications, it allows you to "chase" damaged threads or cut new threads on large-scale fasteners with ease. Built from alloy tool steel, the M39 die features multiple chip clearance holes to allow metal shavings to exit freely, ensuring the tool does not bind or overheat during the threading process. Whether you are working on structural steel or heavy equipment repair, this circular die offers the rigidity needed for precise thread alignment. For maximum tool longevity, always use high-viscosity cutting oil and clear debris frequently by rotating the die back half a turn for every full rotation.

• Hardened Alloy Tool Steel: Manufactured from industrial-grade alloy steel for high hardness and excellent wear resistance. The material ensures sharp cutting edges and a smooth finish, even when working with tough metals like carbon steel and cast iron.
• Precision Threading Performance: Engineered for creating and repairing standard right-hand (clockwise) external threads. This M39 x 4.0mm metric die provides high-accuracy threading for heavy-duty mechanical fasteners and industrial components.
• Standard Coarse Pitch: Features a 4.0mm Thread Per Inch pitch equivalent (metric spacing). The deep thread profile is designed for high-strength fastening applications in construction, agriculture, and heavy machinery maintenance.
• Circular Design for Stability: The round die includes a conical locking hole for secure fitment into large die stocks or wrenches. This design provides balanced cutting pressure, preventing thread stripping or uneven cuts during manual operation.
• Versatile Material Application: Suitable for processing threads on various metals including stainless steel, brass, aluminum, and copper. Ideal for repairing large diameter shafts, structural bolts, and automotive axles.