The Sowa 1/4"-20 UNC Orange Ring HSSE‑V3 Spiral Flute Tap is a precision threading tool engineered for durability and performance. Crafted from high-speed steel with vanadium (HSSE‑V3), this tap handles stainless steel applications up to 35 HRC with confidence. Its spiral flute design efficiently evacuates chips for clean, reliable threads in blind-hole operations.
Thread Size: 1/4"-20 UNC
Finish / Coating: Black Oxide for improved wear resistance
Material & Alloy: HSSE‑V3 (vanadium-enhanced high-speed steel)
Overall Length: 2-1/2"
Thread Length: 0.500"
Chamfer: 2.5P (tapered lead section)
Number of Flutes: 3 (spiral, right-hand)
Thread Class: H3 (standard tolerance)
Direction: Right-hand thread, right-hand flute
Intended Use: Through-hole tapping, especially effective in stainless steel
This tap is ideal for machinists, tool rooms, maintenance technicians, and engineers who demand consistent, high-quality threads in stainless and other tough materials. Comes from the trusted Sowa Taps line.
Use appropriate cutting fluid for stainless steel to reduce heat and improve chip evacuation.
Machine at recommended speeds and maintain steady feed to avoid tool breakage.
Clear chips frequently—especially important in deep or tight holes.
Support workpiece securely and ensure tap alignment is perpendicular to the hole.
Inspect threads after tapping for burrs or distortion and deburr as needed.
Invest in this high-performance, HSSE‑V3 spiral flute tap to get cleaner threads, longer tool life, and reliable results even in demanding materials.