Tap FANAR GWINTOWNIK M5 DIN-371B EL (6H) HSSE TN 800X — hand tap for M5 threads

FANAR GWINTOWNIK M5 DIN-371B EL (6H) HSSE TN 800X is a hand tap for cutting internal metric threads M5. Manufactured to DIN 371B plug tap form with 6H tolerance, the tool is made of high speed steel with cobalt (HSSE) and has a TN surface treatment for improved wear resistance. It is intended for manual or machine use where a DIN 371B plug tap is specified and provides standard M5 thread geometry suitable for general metalworking applications.

Advantages

The HSSE material increases hot hardness and resistance to abrasive wear compared with standard high-speed steel. The DIN 371B plug form allows progressive cutting with reduced risk of chip clogging when tapping blind holes. The TN coating enhances surface hardness and reduces friction, which can extend tool life and improve thread finish. The tool's geometry is compatible with common tapping practice for M5 threads, making it suitable for a range of workpiece materials and tapping methods.

Suitable for

• Cutting internal M5 metric threads in steel and non-ferrous metals
• Manual hand tapping where plug tap form is required
• Machine tapping in small batches or repair work
• Tapping blind holes that benefit from progressive chamfer

Key specifications

• Thread size: M5 internal metric thread
• Tolerance class: 6H
• Tap form: DIN 371B (plug tap geometry)
• Material: HSSE (high speed steel with cobalt)
• Surface treatment: TN coating for wear resistance
• Intended use: hand or machine tapping

How to use

Select an appropriate tap wrench or machine holder matching the tap shank. Secure the workpiece and center the hole to be tapped. Apply suitable cutting fluid for the workpiece material. For manual tapping, start the tap perpendicular to the hole, turn forward in small increments and reverse periodically to break chips. For machine tapping, set appropriate spindle speed and feed to match the M5 thread pitch and the tap’s form, and ensure correct alignment to avoid taper or breakage.

Usage recommendations

Use cutting fluid suitable for the workpiece material and the HSSE tool to reduce heat and wear. For blind holes, clear chips frequently by reversing the tap after several turns to prevent clogging. Inspect the tap for wear or damage before use and replace if cutting performance deteriorates to maintain thread quality.