Tap FANAR M8 DIN 376C R40 (6H) HSSE-PM TiCN — cutting tap for metric M8 threads

FANAR Tap M8 manufactured to DIN 376C standard, R40 profile with 6H tolerance. This cutting tap is made from HSSE-PM and finished with a TiCN coating to improve wear resistance and reduce friction during tapping. It is designed for producing metric M8 internal threads in a range of materials, and can be used in both manual and machine tapping operations where a durable high-speed steel with powder metallurgy and a TiCN surface layer is appropriate.

Advantages

The HSSE-PM base material provides a balance of toughness and hardness, reducing risk of chipping compared with conventional high-speed steels. The TiCN coating increases surface hardness, improves lubricity and helps extend tool life under intermittent and continuous tapping conditions. Precision manufacture to DIN 376C with an R40 profile and 6H tolerance ensures consistent thread geometry and interchangeability. The design supports both hand-held and machine tapping processes, offering versatility across production and maintenance tasks.

Suitable for

• Producing internal metric M8 threads in steel and compatible alloys
• Manual tapping operations with tap wrench or hand holder
• Machine tapping on lathes, milling machines, or tapping machines
• Repairing or rethreading existing M8 threaded holes

Key specifications

• Thread size: M8 (metric internal thread)
• Standard/profile: DIN 376C, R40 profile
• Tolerance: 6H
• Material: HSSE-PM (high-speed steel, powder metallurgy)
• Coating: TiCN (titanium carbonitride)
• Intended use: cutting tap for through and blind holes depending on set-up

How to use

Select an appropriate pilot drill size and ensure the hole is clean and free of chips. Secure the workpiece and align the tap square to the hole axis. For manual tapping use a tap wrench and apply steady, even pressure while turning; back off periodically to break chips and clear flutes. For machine tapping follow the machine manufacturer’s recommended speeds and feed rates for HSSE-PM tools with TiCN coating in the target material. Use suitable cutting fluid or lubricant to reduce friction and improve chip evacuation. Inspect threads after tapping for correct form and fit.

Usage recommendations

Use cutting fluid appropriate for the work material and maintain periodic inspection of the tap for wear or damage; replace the tap when thread quality or dimensional accuracy decreases. When tapping hard or abrasive materials, reduce speeds and increase lubrication to prolong tool life.