Thread Tap FANAR M2 DIN-371C (6H) R40 TN2 HSS-E for cutting metric M2 threads

FANAR Thread Tap M2 DIN-371C (6H) R40 TN2 HSS-E is a precision tool for cutting internal metric M2 threads. Manufactured to DIN‑371C geometry with 6H tolerance and an R40 chamfer, this tap is made of high-speed steel with cobalt (HSS‑E) to provide improved wear resistance and maintain cutting performance when machining small-diameter threads. The design is suitable for manual tapping and machine tapping in a range of commonly used metals, offering a compact solution for producing accurate, repeatable M2 internal threads.

Advantages

The FANAR M2 tap combines DIN‑371C geometry with a short R40 chamfer and 6H tolerance to deliver consistent thread form and fit. Construction from HSS‑E (high-speed steel with cobalt) increases hardness and heat resistance compared with standard HSS, which reduces tool wear during repetitive or demanding operations. The TN2 flute/chamfer style assists chip formation and evacuation when working with steels and general-purpose metals, improving surface finish and reducing the risk of tap breakage in small-diameter applications.

Suitable for

• Cutting internal metric M2 threads in steel and common non-ferrous metals
• Manual tapping operations with controlled feed
• Machine tapping on small parts, jigs, or fixtures
• Precision electronics, miniature assemblies, and instrumentation components

Key specifications

• Thread size: M2 (metric)
• Standard: DIN‑371C geometry
• Tolerance class: 6H
• Chamfer length/type: R40 (short chamfer)
• Material: HSS‑E (high-speed steel with cobalt)
• Flute/chamfer style: TN2
• Intended use: internal thread cutting (tapping)

How to use

Select the correct M2 tap and ensure the workpiece hole is drilled to the recommended pilot diameter for M2. Secure the workpiece to prevent movement and, for machine tapping, set appropriate speed and feed for small-diameter taps. Apply a suitable cutting fluid to reduce friction and aid chip evacuation. Begin tapping with steady, straight engagement; for manual tapping, use a tap wrench and advance carefully, reversing periodically to break chips. For machine tapping, use proper collet or chuck holding and monitor torque to avoid snap-off; retract the tap slowly after completion to clear remaining chips.

Usage recommendations

Use this HSS‑E tap with light to moderate cutting speeds suitable for small-diameter taps, maintain adequate lubrication, and limit excessive axial loads. For prolonged tool life when tapping steel, ensure correct pilot hole size, use a gradual feed, and clear chips frequently. Replace the tap if cutting performance or thread quality degrades.