ANECD5NPTPM Skip Tooth Tap LH NPT 5NPT已售出0個A French-brand pipe thread tap built from powder-metallurgy HSS, the NPT 5NPT, ideal for PT/PF pipe threads, commonly used for sealing water, hydraulic and pneumatic line connections. Available in 4 sizes (thread dia 1~3, pitch 14~27, thread length 10.5~17mm, overall length 55~80mm, shank dia 8~18mm). Suitable for machining carbon and alloy steel, stainless steel, cast iron, non-ferrous metals like aluminium and copper, workpiece hardness up to HRC45. French brand, consistent quality.
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Left-Hand Pipe Tap
Product Overview: Powder Metallurgy Interrupted Thread Tap Left-Hand NPT – 5NPT 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 NPT American standard taper pipe thread tapping accuracy and tool durability.
- NPT American Taper Pipe Thread Left-Hand Dedicated Design: Features NPT (American standard taper pipe thread) specification design where tapered thread forming ensures airtight and watertight sealing for American standard pipe fittings — combined with a left-hand (reverse rotation) design, recommended for applications requiring left-hand NPT pipe thread forming or tapping under counter-clockwise spindle rotation conditions, effectively addressing special thread machining needs for North American specification pipe fitting components.
- HSS-PM Powder Metallurgy High-Performance Substrate: Manufactured with powder metallurgy high-speed steel (HSS-PM), with maximum machining hardness up to HRC45 — delivering extremely uniform carbide distribution, outstanding toughness, and wear resistance, recommended for long-duration stable NPT pipe thread tapping across various materials, providing superior tool life compared to standard HSS and HSS-CO.
- Interrupted Thread Optimized Geometry: Features an interrupted thread (alternate tooth) design that effectively reduces tapping torque and improves chip evacuation — recommended for precision forming of NPT taper pipe thread profiles, ensuring tapered thread contour accuracy and American standard pipe fitting airtight fit requirements.
- 4 NPT Specification Precise Coverage: Available in thread diameter 1–3 inches and pitch 14–27 TPI across 4 specifications — recommended as the dedicated high-performance stock tool for NPT left-hand pipe thread tapping across various materials, covering common North American specification pipe fitting thread requirements.
【Machining Applications & Uses】
- Primary Use: NPT American standard taper pipe thread left-hand precision tapping, North American pipe fitting airtight thread forming, and special anti-loosening NPT pipe thread hole machining.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC45, where the HSS-PM substrate delivers stable and long-lasting NPT pipe thread tapping performance.
- M-Class (Stainless Steel): SUS304, SUS316, and other high-toughness stainless steel pipe fittings — the HSS-PM powder metallurgy characteristics effectively address work hardening challenges, recommended for use with appropriate cutting fluid.
- K-Class (Cast Iron): Cast iron and gray iron pipe components — the HSS-PM substrate provides outstanding wear-resistant NPT pipe thread tapping tool life.
- N-Class (Non-Ferrous Metals): Aluminum alloys, copper pipe fittings, and other non-ferrous metals — recommended for use with appropriate cutting fluid to ensure NPT pipe thread quality.
