Tap (gwintownik) FANAR UNC No 8-32 DIN 371B (2B) HSS-E TiN 800X

FANAR UNC No 8-32 tap manufactured to DIN 371B (2B) specifications, made from HSS-E high-speed steel with a TiN (titanium nitride) coating and model designation 800X. This tap is intended for cutting internal UNC 8-32 threads in a variety of metals and alloys. It is designed for use in both manual and machine tapping operations and meets geometry and tolerance requirements specified by DIN 371B for general-purpose through and blind hole threading.

Advantages

The HSS-E material provides high red hardness and wear resistance for extended tool life under elevated temperatures. The TiN coating reduces friction and improves chip flow, which helps to minimize thread surface adhesion and tool galling. The DIN 371B (2B) thread form ensures compatibility with standard UNC fasteners and reliable thread fit. The tap's geometry and manufacturing tolerances are suitable for consistent performance across repeated cycles in production and maintenance environments.

Suitable for

• Cutting internal UNC 8-32 threads in steel, stainless steel, aluminium and non-ferrous alloys
• Manual tapping with tap wrenches or machine tapping on drilling machines and tapping heads
• General maintenance, repair operations and small-series production where standardized UNC threads are required

Key specifications

• Thread type: UNC coarse thread profile, size 8-32
• Standard: DIN 371B (2B) thread form and tolerance class
• Material: HSS-E (high-speed steel with cobalt content)
• Coating: TiN (titanium nitride) for reduced friction and increased wear resistance
• Application: Through and blind hole tapping capability

How to use

Select proper drill size for the UNC 8-32 tap drill prior to threading and secure the workpiece to prevent movement. Use appropriate cutting fluid or tapping lubricant depending on the workpiece material to reduce heat and improve chip evacuation. Start the tap square to the hole and advance with steady clockwise rotation, reversing periodically to break chips. For machine tapping, set correct spindle speed and feed to match the tap pitch and material; for manual tapping, apply controlled pressure and back off frequently to clear chips. After completing the thread, remove remaining chips and inspect the thread fit with a matching UNC fastener or thread gauge.

Usage recommendations

Use this FANAR HSS-E TiN tap with compatible cutting fluids for harder steels and with light oil for aluminium to extend tool life. Avoid excessive spindle speed and high feed rates; maintain alignment to reduce risk of tap breakage. Replace the tap when signs of wear, chipping or degraded thread quality appear.