Strojový závitník M8 DIN 371B (6HX) HSS-PM EL-CUT

Precision machine tap for M8 metric coarse threads, engineered from powder-metallurgy high-speed steel with EL-CUT coating for exceptional performance in through-hole threading operations.

Advantages

The HSS-PM substrate delivers superior toughness and wear resistance compared to conventional HSS, while the EL-CUT coating reduces friction and heat build-up, extending tool life and improving thread quality. The spiral point (Form B) geometry efficiently pushes chips forward, making it ideal for through holes in a wide range of materials.

Suitable for

• Through-hole threading in steels, stainless steels, and non-ferrous metals
• General-purpose machining, maintenance, and production environments
• Use with tapping machines, CNC machining centres, or manual tapping operations

Key specifications

• Thread size: M8 x 1.25 mm (metric coarse)
• Tolerance class: 6HX
• Tool standard: DIN 371B
• Material: HSS-PM (powder metallurgy high-speed steel)
• Coating: EL-CUT
• Flute type: Spiral point (Form B)
• Overall length: 90 mm; Thread length: 18 mm
• Shank diameter: 8.0 mm; Square drive: 6.2 mm
• Number of flutes: 3; Right-hand cutting direction

Recommendations

For best results, use with appropriate tapping fluid and ensure correct alignment. The 6HX tolerance class is suitable for standard metric nuts and threaded holes. This tap is a reliable choice for both occasional repairs and high-volume production.