ANXCD5USPM General Purpose Spiral Flute Tap UNC 5US已售出0個The UNC 5US is a French-brand spiral flute tap made of powder-metallurgy HSS, ideal for tapping blind (non-through) holes — its spiral flutes pull chips back toward the shank, keeping the hole bottom clear. Available in 30 sizes (thread dia 1~9, pitch 9~56, thread length 2.5mm, overall length 42~115mm, shank dia 3~17mm). A TiN coating adds a hard golden film for better wear and anti-galling, extending tool life. Suitable for machining carbon and alloy steel, stainless steel, non-ferrous metals like aluminium and copper, workpiece hardness up to HRC35. French brand, consistent quality.
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Product Overview: Powder Metallurgy General-Purpose Spiral Flute Tap UNC – 5US 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 UNC American standard coarse thread spiral flute tap accuracy and multi-material versatility.
- Spiral Flute UNC Blind Hole Dedicated Design: Features a spiral flute tap design that pulls chips upward and out of the hole — recommended for UNC blind hole tapping operations, effectively resolving the chip accumulation issue at the hole bottom, ensuring smooth UNC blind hole tapping and thread accuracy, making it the preferred tap type for UNC blind hole applications.
- HSS-PM Powder Metallurgy High-Performance Substrate: Manufactured with powder metallurgy high-speed steel (HSS-PM), delivering more uniform carbide distribution, higher toughness, and superior wear resistance compared to standard HSS and HSS-CO — recommended for long-duration stable UNC blind hole tapping across various materials.
- TiN Coating Enhancement: The surface is treated with TiN coating, providing good wear resistance and heat resistance — recommended for continuous UNC spiral tapping of carbon steel, alloy steel, stainless steel, and non-ferrous metals, effectively extending tool change intervals.
- 30 UNC Specification Precise Coverage: Available in thread diameter 1–9 inches and pitch 9–56 TPI across 30 specifications — recommended as the dedicated high-performance stock tool for UNC blind hole tapping in factories and machining centers, covering common North American specification workpiece blind hole tapping requirements.
【Machining Applications & Uses】
- Primary Use: UNC blind hole multi-material spiral tapping, NC machining center UNC automatic blind hole tapping, and North American specification cross-material UNC blind hole thread forming.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC35, where HSS-PM combined with TiN coating delivers stable and long-lasting UNC blind hole tapping performance.
- M-Class (Stainless Steel): SUS304, SUS316, and other high-toughness stainless steel — the spiral flute design effectively manages continuous chip upward evacuation, combined with HSS-PM substrate to suppress work hardening, recommended for use with appropriate cutting fluid.
- N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and other non-ferrous metals — the spiral flute design ensures smooth UNC blind hole chip evacuation, preventing built-up edge from affecting thread quality.
