M10 Machine Tap DIN 371B 6H HSSE-PM HL INOX for Stainless Steel

Cutting threads in stainless steel can quickly dull ordinary taps, leading to poor thread quality and frequent tool changes. The NO NAME M10 machine tap solves this by combining powder metallurgy HSSE-PM steel with a cobalt-enriched matrix, delivering the heat resistance and edge retention needed for demanding INOX work. Its DIN 371B geometry with reinforced shank and 3-flute spiral design ensures reliable chip evacuation in through holes, while the 6H tolerance class produces consistently accurate metric coarse threads.

Who is it for

Machinists, metalworking shops, and maintenance teams who regularly tap stainless steel components. Ideal for production environments where tool life and thread consistency are critical, as well as for repair work on food-grade or corrosion-resistant equipment.

Main features

• HSSE-PM with cobalt: powder metallurgy high-speed steel with cobalt addition for superior wear resistance and hot hardness when tapping stainless steel.
• DIN 371B reinforced shank: provides extra rigidity and reduces deflection, ensuring straight, accurate threads even in demanding setups.
• Spiral flute design (35° helix): efficiently pulls chips backward out of through holes, preventing clogging and reducing tap breakage risk.
• Form B chamfer (4-5 threads lead): gradual cutting action eases the tap into the hole, lowering torque and improving thread finish.
• Ground thread with bright finish: precision-ground threads ensure dimensional accuracy and a smooth surface that resists material adhesion.

Specifications

• Thread Type: Metric Coarse
• Nominal Diameter: M10
• Thread Pitch: 1.5 mm
• Standard: DIN 371B
• Material: HSSE-PM (High-Speed Steel with Cobalt, Powder Metallurgy)
• Application Material: Stainless Steel (INOX)
• Thread Tolerance Class: 6H
• Flute Type: Spiral Flute
• Shank Type: Reinforced Shank
• Surface Finish: Bright / Uncoated
• Overall Length (L1): 100 mm
• Thread Length (L2): 25 mm
• Shank Diameter (d2): 7.0 mm
• Square Drive Size (a): 5.5 mm
• Chamfer Form: Form B (4-5 threads lead)
• Cutting Direction: Right-Hand Cut
• Tool Application: Through Holes
• Product Series: HL INOX
• Manufacturing Process: Ground Thread
• Number of Flutes: 3

Tips

Use a suitable cutting fluid or tapping paste for stainless steel to maximise tool life and thread quality. Ensure the tap is properly aligned with the pre-drilled hole and apply steady, even pressure. For through holes, the spiral flute design will evacuate chips efficiently, but clear them periodically in deep holes. Store taps in a dry, organised holder to prevent edge damage.