Material Suitability: Engineered for Austenitic Stainless Steels (300 series), Ferritic/Martensitic Stainless Steels (400 series), and Precipitation Hardening Steels (17-4PH).
Hole Type: Optimized for Blind Hole applications.
Performance Tier: Premium Industrial Grade for high-volume production.
Vanadium-Enhanced HSS-E (HSSE-V3): Manufactured from premium cobalt high-speed steel with increased Vanadium content for superior wear resistance and red hardness.
Oxidized Surface (Vapor Homogenization): Features a specialized steam-oxide surface treatment that retains cutting oil and prevents “cold welding” (galling) between the tap and the workpiece.
High Rake Angle : A sharp cutting edge designed to shear through “gummy” stainless steel fibers, reducing cutting torque and preventing work hardening.
Unique Flute Form: Widened spiral flutes facilitate smooth, continuous chip evacuation, preventing chip jamming in deep blind holes.
Back Taper : Minimizes friction on the thread flanks and prevents the tap from seizing during the reversal process.
Lubrication: High-sulfur or chlorine-based cutting oils are highly recommended for stainless steel tapping.
Tapping Speed: Suggested speed range: 5 – 12 m/min (depending on the specific grade of stainless steel).
Drill Size: Ensure the pre-drilled hole size is accurate; for stainless steel, a slightly larger bottom hole (within tolerance) can significantly reduce tap breakage