Tap (gwintownik) FANAR M3 DIN-371B HSSE HL INOX C2-118801-0030 6H for stainless steel

FANAR M3 tap DIN-371B is a solid metric hand/machine tap made of HSSE high-speed steel with HL surface treatment, designed for cutting internal M3 threads in stainless and alloy steels. The INOX variant and 6H tolerance ensure compatibility with corrosion-resistant materials and standard thread fits, providing consistent thread form and dimensional accuracy for assembly and repair tasks.

Advantages

The HSSE material offers increased wear resistance and toughness compared with conventional HSS, while the HL coating improves lubricity and reduces built-up edge during cutting in stainless steels. Conforming to DIN-371B geometry, this tap provides reliable chip evacuation and stable thread profile generation. The 6H tolerance delivers a standard internal thread fit suitable for common fasteners, and the tool is compatible with manual tapping or machine tapping setups.

Suitable for

• Cutting internal M3 metric threads in stainless steels (INOX) and alloy steels
• Manual tapping operations with tap wrenches or handles
• Machine tapping in tapping heads, milling machines, or lathes
• Repairing or producing threaded holes for assembly and mechanical fastening

Key specifications

• Thread size: M3 metric internal thread
• Standard: DIN-371B (taper/chamfer and flute geometry for general-purpose taps)
• Material: HSSE high-speed steel for enhanced wear resistance
• Coating/finish: HL surface treatment to improve cutting performance in stainless steels
• Tolerance: 6H internal thread tolerance class
• Application material: stainless steels (INOX) and alloy steels

How to use

Select appropriate drilling diameter for M3 tapping and secure the workpiece to prevent movement. Use cutting fluid suitable for stainless steels to reduce friction and avoid work hardening. Start the tap perpendicular to the hole and apply steady rotational force; for hand tapping use backing-off turns to break chips periodically. When machine tapping, set proper spindle speed and feed for HSSE taps and monitor torque to prevent tap breakage. After completing the thread, reverse the tap to remove it and clean the threaded hole of chips and cutting fluid residue.

Usage recommendations

Use a dedicated stainless-steel cutting fluid and moderate feed/speed; avoid excessive speed to reduce heat and risk of built-up edge. Inspect and replace taps showing wear or chipping to maintain thread quality and dimensional accuracy.