Thread Tap FANAR M8x1 DIN 374C R40 (6H) HSSE 800

FANAR Thread Tap M8x1 DIN 374C R40 (6H) HSSE 800 is a precision tap designed for cutting internal metric threads M8x1 according to the DIN 374C standard. Manufactured from HSSE 800 high-speed steel, this tap provides wear resistance and dimensional stability for both manual and machine tapping operations. The R40 profile and 6H tolerance ensure compatibility with standard metric fits and repeatable thread quality in production or repair environments.

Advantages

This FANAR M8x1 tap offers high material strength due to HSSE 800 construction, which improves tool life when machining typical ferrous materials. Conformance to DIN 374C and a 6H tolerance class delivers consistent thread geometry and interchangeability with standard metric fasteners. The R40 profile facilitates chip formation and evacuation in general-purpose tapping, helping to reduce the risk of tool breakage and improving process reliability.

Suitable for

• Cutting internal M8x1 metric threads in mild steel and other common workshop metals
• Manual tapping and machine tapping operations
• Maintenance, repair and retrofit tasks requiring DIN-compliant threads
• Small series production where consistent 6H tolerance is required

Key specifications

• Thread size and pitch: M8 x 1 mm
• Standard/profile: DIN 374C with R40 profile
• Tolerance class: 6H internal thread tolerance
• Material: HSSE 800 high-speed steel
• Intended use: internal metric thread cutting for manual and machine tapping

How to use

Select the appropriate drill size for a tapped hole to match M8x1 standard preparation, secure the workpiece, and ensure correct alignment of the tap with the hole axis. For manual tapping, apply steady pressure and rotate the tap forward in short increments, reversing briefly to break chips as needed. In machine tapping, use recommended spindle speed and feed settings for the material being machined, and ensure proper lubrication or cutting fluid is used to reduce friction and improve chip evacuation. Inspect threads after cutting to confirm dimensional accuracy and surface condition.

Usage recommendations

Use suitable cutting fluid when tapping ferrous materials and moderate speeds for machine tapping to extend HSSE 800 tap life. For blind holes, withdraw the tap frequently to clear chips; for through holes, ensure adequate chip evacuation. Store the tap in a protective holder to prevent damage to cutting edges.