Thread Tap FANAR M10x1.25 DIN 371C HSSE TiN R40 (6H) for through and blind holes

Solid high-speed steel tap FANAR M10x1.25 DIN 371C HSSE TiN R40 (6H) is designed for cutting metric M10×1.25 threads in through and blind holes. Manufactured to DIN 371C dimensions with a 6H tolerance class, this tap features a TiN (titanium nitride) coating that enhances surface hardness and wear resistance. The R40 flute/geometry provides a general-purpose profile suitable for threading in steel and a range of other metals in machining, toolroom and maintenance environments.

Advantages

The HSSE core delivers toughness and heat resistance during intermittent and continuous cutting, while the TiN coating reduces friction and extends tool life. The DIN 371C form factor ensures dimensional compatibility with standard tapping procedures and fixtures. The R40 geometry balances chip control and thread quality for both through and blind hole applications, and the 6H tolerance yields reliably precise internal threads.

Suitable for

• Cutting metric M10×1.25 internal threads in steel and ferrous alloys
• Threading in non-ferrous metals and common engineering alloys
• Through-hole and blind-hole tapping operations
• Machine shop production, maintenance and tooling repairs

Key specifications

• Thread size: M10×1.25
• Standard: DIN 371C
• Material: high-speed steel (HSSE)
• Surface coating: titanium nitride (TiN)
• Tolerance class: 6H
• Geometry: R40 (general-purpose flute profile)
• Application: through and blind holes

How to use

Select appropriate machine setup and secure workpiece. Use recommended spindle speed and feed based on workpiece material and tool manufacturer guidance; apply suitable cutting fluid to improve chip evacuation and reduce heat. For blind holes, avoid plunging too deeply on the first pass—progressively advance the tap and back off to clear chips if necessary. Ensure alignment of the tap with the hole axis to prevent thread distortion and tool breakage. After threading, inspect threads for dimensional accuracy and surface finish.

Usage recommendations

Use cutting oil suitable for the workpiece material and maintain steady feed. For harder steels or interrupted cuts, reduce speed and use light, controlled passes. Replace the tap when wear or coating degradation affects thread quality to maintain tolerance and prevent damage to workpieces.