Tap (threading tool) FANAR M8x1 DIN 371C R40 HSSE-PM TiCN

The FANAR M8x1 DIN 371C R40 HSSE-PM TiCN tap is designed for cutting M8x1 metric threads to the DIN 371C straight-flute specification. Made from HSSE-PM high-speed steel and finished with a titanium carbonitride (TiCN) coating, this tap is suitable for both manual and machine tapping in a range of metalworking and maintenance applications. The R40 designation refers to the chamfer length and entry geometry appropriate for through and blind holes where a standard DIN 371C form is required.

Advantages

The HSSE-PM material provides improved toughness and wear resistance compared with conventional high-speed steels, while the TiCN coating reduces friction and extends tool life under general-purpose cutting conditions. The DIN 371C straight flute geometry supports reliable chip formation and removal in many ferrous and non-ferrous materials. This combination yields consistent thread quality, predictable performance in production and repair tasks, and reduced frequency of tool changes.

Suitable for

• Cutting M8x1 metric threads in through and blind holes according to DIN 371C
• Manual tapping with tap wrench or machine tapping in lathes, milling machines, and tapping machines
• General metalworking and maintenance: steel, alloy steel, cast iron, and some non-ferrous materials

When it may not be suitable

This tap is specified to DIN 371C straight flute form and is not intended for specialized thread forms or fine-pitch variations outside M8x1. It may not be optimal for highly abrasive materials, extremely hard workpieces beyond HSSE-PM recommendations, or where specialized coatings or geometries (e.g., split point, spiral flute for deep blind holes) are required.

Key specifications

• Thread size: M8 x 1 metric
• Standard: DIN 371C straight flute
• Material: HSSE-PM (powder-metallurgy high-speed steel)
• Coating: TiCN (titanium carbonitride)
• Chamfer/lead: R40 (short/standard chamfer suitable for general use)

How to use

Select appropriate tapping speed and cutting fluid for the workpiece material. For manual tapping, use a suitable tap wrench and ensure the tap starts square to the hole; apply steady pressure and reverse periodically to break chips. For machine tapping, secure the workpiece and use appropriate spindle speed, feed, and lubrication; use rigid tapping or floating spindle as required by the machine and thread callout. Retract carefully from the hole to clear chips and inspect the thread for conformity to M8x1 dimensions.

What to consider before purchase

• Confirm thread size and standard required (M8x1, DIN 371C) for your application
• Verify workpiece material compatibility with HSSE-PM and TiCN coating
• Decide between manual or machine tapping and ensure proper tooling and speeds are available

Usage recommendations

Use appropriate cutting fluid and moderate speeds for ferrous materials, avoid excessive lateral force during manual tapping, and replace the tap at first signs of wear to maintain thread quality and reduce rework.