Hand taps FANAR model A1-220001-0164 HSS DIN-2181 set M16 x 1.25 2 pcs

Two-piece FANAR hand tap set model A1-220001-0164 manufactured to DIN-2181 from high-speed steel (HSS). The set contains two taps sized for internal metric threads M16 x 1.25 with 6H tolerance, intended for manual threading of steel and common general-purpose metals. This set is suitable for maintenance tasks, repair of existing threaded holes, and small-scale prototyping where accurate internal threads are required.

Advantages

The taps are made from HSS which provides good hardness and wear resistance for cutting threads in a variety of ferrous and non-ferrous materials. Compliance with DIN-2181 ensures consistent thread form and compatibility with standard metric fasteners. Supplied as a two-piece set, the taps allow a progressive cutting approach—typically using a taper or intermediate tap first and a second tap to finish the thread—reducing breakage risk and improving thread quality. The M16 x 1.25 size covers common engineering and maintenance needs.

Suitable for

• Manual thread cutting in steel, cast iron, and many general-purpose metals
• Workshop repair and restoration of damaged internal threads
• Maintenance tasks on machinery and assemblies requiring M16 x 1.25 threads
• Small-batch prototyping where standard metric internal threads are needed

When it may not be suitable

This HSS hand tap set is not intended for high-volume industrial production using CNC tapping machines or where specialized coatings or carbide taps are required for extremely hard or abrasive materials. For very hard alloys, hardened steels, or composite materials, a specialized tap material or coating may be preferable. Also, these taps are designed for manual use; forced or high-speed machine tapping without appropriate tooling may lead to premature wear or breakage.

Key specifications

• Thread size: M16 x 1.25
• Tolerance: 6H
• Material: High-speed steel (HSS)
• Standard: DIN-2181
• Set quantity: 2 taps

How to use

Secure the workpiece and ensure the hole is drilled to the correct pilot diameter for M16 x 1.25. Use appropriate cutting fluid for the material being tapped to reduce friction and extend tool life. Start with the first tap (typically the taper or intermediate) and apply steady, aligned pressure while turning the tap clockwise. Back the tap out regularly to break chips and clear cuttings, then continue until the required thread depth is reached. Finish with the second tap to obtain the final thread profile and dimensional accuracy. Clean the hole and inspect the thread for burrs or damage before assembly.

What to consider before purchase

• Verify the required thread size and pitch (M16 x 1.25) matches the fasteners you intend to use
• Confirm the material you will tap is suitable for HSS taps and consider coated or carbide taps for harder materials
• Ensure you have the correct drill size for the pilot hole and suitable tap wrench or holder for manual tapping

Usage recommendations

Use appropriate cutting fluid, maintain alignment during tapping, and clear chips frequently. For best results, pair the two taps in sequence (first tap then second tap) and avoid excessive force to reduce the risk of tap breakage.