Thread Tap FANAR M12x1 NGMM/1 DIN-2181D (6H) HSS

FANAR M12x1 NGMM/1 DIN-2181D (6H) HSS thread tap is designed for cutting and restoring M12x1 metric internal threads in metal components. Produced to DIN-2181D dimensions from high-speed steel (HSS), this hand or machine tap meets the 6H tolerance class for standard metric fits. It is intended for use with appropriate tap holders, alignment, and cutting fluids in industrial and workshop threading operations.

Advantages

The HSS construction offers good toughness and heat resistance for general-purpose threading in steel and other common metals. Conformance to DIN-2181D ensures dimensional compatibility and predictable thread form, while the 6H tolerance class provides a standard fit for mating bolts and components. The NGMM/1 geometry is suitable for producing clean internal threads and works with standard tapping equipment and cutting lubricants to extend tool life and improve surface finish.

Suitable for

• Cutting new M12x1 internal metric threads in metal parts
• Repairing or restoring damaged M12x1 threads
• Workshop and industrial threading operations with manual or machine tapping
• Use where DIN-2181D dimensional conformity and 6H tolerance are required

Key specifications

• Thread size: M12x1 metric
• Standard: DIN-2181D
• Material: high-speed steel (HSS)
• Tolerance class: 6H
• Geometry type: NGMM/1 hand/machine tap profile

How to use

Select the correct tap holder or collet and ensure the workpiece is securely clamped and aligned. Use the appropriate pilot drill size for an M12x1 thread, then apply suitable cutting fluid to reduce friction and improve chip evacuation. For hand tapping, advance the tap with steady pressure and back off periodically to clear chips. In machine tapping, set correct spindle speed and feed for the material and HSS tool, and ensure pecking or reversing routines are used where appropriate to avoid chip packing. Inspect the finished thread for dimensional accuracy and surface quality against the required 6H tolerance.

Usage recommendations

Use cutting fluid compatible with the workpiece material, keep the tap clean of chips during operation, and avoid excessive speeds in harder materials to prolong tool life and maintain thread quality.