ANXCD5SFSYatora Stainless Spiral Flute Tap UNF 5SFS已售出0個Made of HSS-EX, the UNF 5SFS is a French-brand spiral flute tap, ideal for tapping blind (non-through) holes — its spiral flutes pull chips back toward the shank, keeping the hole bottom clear. Available in 6 sizes (thread dia 1~5, pitch 20~36, thread length 2.5mm, overall length 52~85mm, shank dia 5~9mm). Black-oxide finish resists galling and rust. Suitable for machining stainless steel, workpiece hardness up to HRC30. French brand, consistent quality.
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Stainless Steel Tap
Product Overview: HSS Tiger Stainless Steel Spiral Flute Tap UNF – 5SFS Series
【Product Features & Why We Recommend It】
- French Brand Professional Quality: Originating from a professional French cutting tool brand with rigorous quality control — recommended for users with high demands on UNF stainless steel fine thread spiral blind hole tapping accuracy and tool durability.
- Stainless Steel UNF Fine Thread Blind Hole Dedicated Optimized Design: Features a UNF fine thread spiral flute tap geometry specifically optimized for the difficult-to-machine characteristics of stainless steel — including high toughness, susceptibility to work hardening, and continuous chip formation — the spiral design pulls chips upward and out, recommended for stainless steel UNF fine thread blind hole tapping operations, effectively managing continuous chip upward evacuation and preventing hole bottom chip accumulation, while the fine thread design also provides higher thread strength and locking reliability compared to UNC coarse threads.
- HSS-EX Ultra-High Performance Substrate: Manufactured with HSS-EX ultra-high performance high-speed steel, delivering superior hardness, toughness, and wear resistance compared to standard HSS and HSS-CO — recommended for long-duration stable UNF fine thread spiral blind hole tapping of difficult-to-machine materials such as stainless steel.
- Black Oxide Surface Treatment: The surface is treated with black oxide (Steam Oxide) finishing, providing good lubricity and anti-adhesion characteristics — more effectively reducing friction between chips and the tool compared to uncoated tools, recommended for suppressing built-up edge and adhesion issues during UNF stainless steel fine thread blind hole tapping to maintain fine thread quality and tapping stability.
- Spiral Flute Upward Chip Evacuation Design: The spiral flute design pulls chips upward and out of the hole — recommended for stainless steel UNF fine thread blind hole tapping operations, effectively managing continuous chip evacuation to ensure smooth blind hole tapping and fine thread accuracy.
- 6 UNF Specification Precise Coverage: Available in thread diameter 1–5 inches and pitch 20–36 TPI across 6 specifications — recommended as the dedicated high-performance stock tool for UNF stainless steel fine thread blind hole spiral tapping, addressing common North American fine thread specification stainless steel precision workpiece blind hole tapping requirements.
【Machining Applications & Uses】
- Primary Use: Stainless steel UNF fine thread blind hole precision spiral tapping, North American specification precision stainless steel component UNF fine thread blind hole thread forming, and NC machining center UNF stainless steel automatic blind hole tapping.
- Recommended Work Materials:
- M-Class (Stainless Steel): SUS304, SUS316, SUS420, and other high-toughness stainless steel — the sole dedicated recommended application scenario for this series, where the UNF stainless steel fine thread dedicated spiral geometry combined with HSS-EX substrate and black oxide surface treatment effectively addresses the unique stainless steel UNF fine thread blind hole tapping challenges of work hardening, continuous chip formation, and hole bottom chip accumulation, recommended for use with appropriate cutting fluid.
