FANAR left-hand thread tap M12 – FANAR model FAN-N1-111001-0100

FANAR left-hand thread tap M12 – FANAR model FAN-N1-111001-0100 is a solid cutting tap designed to create or repair internal M12 left-hand metric threads in metal components. Manufactured by FANAR, this tap is intended for use where a counterclockwise thread is required, such as reverse-threaded fittings or assemblies subject to rotational loads that necessitate left-hand engagement. The tool is suitable for both manual tapping and machine tapping operations, providing precise thread form consistent with metric M12 left-hand specifications.

Advantages

This solid cutting tap offers accurate thread geometry and consistent pitch for reliable fitment of left-hand M12 fasteners. Its construction supports repeated use in workshop and industrial environments, and it is compatible with standard tapping techniques for metric threads. The tool is appropriate for use in repairs as well as in production where left-hand threads are specified, helping to maintain assembly integrity in applications requiring reverse-threaded components.

Suitable for

• Tapping internal M12 left-hand metric threads in steel and other metals
• Repairing damaged left-hand M12 threads in assemblies and components
• Machine tapping operations on lathes, milling machines, or tapping heads
• Manual hand tapping with appropriate tap wrench for controlled thread cutting
• Applications requiring left-hand threads such as reverse-threaded fittings or rotating assemblies

Key specifications

• Thread size and form: M12 left-hand metric
• Tool type: solid cutting tap for internal threads
• Intended workpiece material: metals (general-purpose steel, alloy steels, and similar materials)
• Usage mode: suitable for manual and machine tapping operations
• Thread direction: left-hand (counterclockwise)

How to use

Select the appropriate pilot hole size for an M12 left-hand metric thread and secure the workpiece. For manual tapping, align the tap perpendicular to the hole, apply cutting fluid, and turn the tap counterclockwise to cut the left-hand thread, using even pressure and periodic backing off to clear chips. For machine tapping, use proper spindle speeds, feed rates, and coolant appropriate for the workpiece material, and ensure the machine is set for left-hand thread cutting where required. Inspect the thread profile and fit with a mating left-hand M12 fastener to verify correct form and fit.

Usage recommendations

Use recommended cutting fluids for the target material, avoid excessive torque to prevent tap breakage, and clear chips frequently when tapping deep holes. For hardened or difficult-to-cut alloys, consider appropriate tap coatings or specialized tap variants and verify machining parameters to extend tool life and ensure accurate M12 left-hand threads.