ANBCD5OUPTOversize Spiral Point Tap UNC 5OUPT已售出0個The 5OUPT is a French-brand oversize spiral point tap built from HSS-EX high-speed steel, cutting UNC (Unified Coarse) threads slightly larger than standard — ideal for leaving clearance for plating, compensating for hole shrinkage so screws seat cleanly, or enlarging existing threaded holes. Its spiral point pushes chips forward for fast, clean threading, making it especially suited to through (non-blind) holes. Available in 33 sizes (thread #4~1/2, 13~56 TPI, thread length 2.5×dia). A TiN coating adds a hard golden film for better wear and anti-galling, extending tool life. Suitable for carbon and alloy steel, stainless steel, cast iron, non-ferrous metals like aluminium and copper, workpiece hardness up to HRC45. French brand, consistent quality.
商品分類
標籤
Oversize Tap
Shrinkage Prevention
Product Overview: HSS Oversize Tap Spiral Point UNC – 5OUPT 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 through-hole thread repair oversize tapping and undersized hole prevention.
- UNC Oversize Spiral Point Through-Hole Repair Dedicated Design: Features a spiral point oversize tap geometry that pushes chips forward and out of the hole — with a thread diameter specification larger than standard taps, recommended for UNC through-hole thread repair and oversize machining after thread stripping, while also recommended for undersized hole prevention prior to tapping to ensure UNC thread dimensions meet North American standard requirements after tapping, providing higher repair tapping efficiency in through-hole applications compared to the spiral flute version (5OUST).
- HSS-EX Ultra-High Performance Substrate: Manufactured with HSS-EX ultra-high performance high-speed steel, with maximum machining hardness up to HRC45 — delivering superior hardness, toughness, and wear resistance compared to standard HSS and HSS-CO, recommended for long-duration stable UNC spiral point through-hole repair 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 oversize spiral point through-hole repair tapping of carbon steel, stainless steel, cast iron, and non-ferrous metals, effectively extending tool change intervals.
- 33 UNC Specification Wide Coverage: Available in thread diameter #4–1/2 inch and pitch 13–56 TPI across 33 specifications — recommended as the high-performance stock tool for UNC through-hole spiral point oversize repair tapping in factories and maintenance centers, covering thread repair and undersized hole prevention needs for common North American specification workpieces.
【Machining Applications & Uses】
- Primary Use: UNC through-hole stripped thread repair and oversize tapping, through-hole undersized hole prevention tapping, and North American specification damaged threaded hole functionality restoration.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC45, where HSS-EX combined with TiN coating delivers stable UNC spiral point oversize through-hole repair tapping performance.
- M-Class (Stainless Steel): SUS304, SUS316, and other high-toughness stainless steel — the spiral point design effectively manages continuous chip forward evacuation, recommended for use with appropriate cutting fluid.
- K-Class (Cast Iron): Cast iron and gray iron — the TiN coating provides outstanding wear-resistant UNC through-hole repair tapping tool life.
- N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and other non-ferrous metals — the spiral point design ensures smooth through-hole chip evacuation, preventing built-up edge from affecting UNC repair thread quality.
