Threading Die (left-hand) FANAR M12 N1-111001-0120

Left-hand threading die for cutting or restoring M12 metric threads. The FANAR M12 N1-111001-0120 solid die is designed to form or repair external left-handed M12 threads on rods and bolts when used with a compatible die stock or holder. Manufactured from hardened tool steel and finished for dimensional accuracy, this die is intended for workshop and maintenance tasks that require precise thread geometry and repeatable results.

Advantages

This left-hand die provides consistent thread profile and pitch when used correctly, reducing the need for subsequent chasing or rework. Its solid construction offers durability under repeated use and stable alignment in standard die holders. The die’s cutting edges are ground to ensure a clean cut on metal rods and bolts, and the nominal M12 size and left-hand orientation make it suitable for reversing or specific mechanical applications where left-handed threads are required.

Suitable for

• Cutting new left-handed M12 external threads on round rods and bolts
• Repairing damaged or corroded M12 left-handed threads
• Workshop maintenance and general machinery repair
• Applications requiring left-hand threads for assembly, safety, or rotational direction reasons

Key specifications

• Thread standard: metric M12, left-hand orientation
• Type: solid cutting die for external threads
• Material: hardened tool steel (heat-treated for wear resistance)
• Finish: ground cutting edges for dimensional accuracy
• Compatibility: designed for use with standard die stocks and holders sized for M12 dies

How to use

Secure the die in a compatible die stock or holder following the holder manufacturer’s instructions, ensuring the left-hand orientation is correct. Clamp the workpiece and center the starter chamfer of the rod or bolt; apply cutting lubricant to the work area. Start the die onto the blank with steady pressure and rotate the die in the cutting direction for left-hand threads (opposite to right-hand threading). After several turns, back off periodically to clear chips and reapply lubricant. Continue until the required thread length is formed, then remove the die and clean the newly cut threads.

Usage recommendations

Use cutting fluid appropriate for the workpiece material, maintain correct alignment between die and workpiece, and avoid excessive feed or torque to prolong die life and ensure accurate threads. For hardened or fine-finish requirements, consider progressive cutting passes and inspection with a thread gauge to confirm pitch and fit.