Pipe Threads

GFI - API (NPT)

GFI--API tapered NPT pipe thread high performance design for maximum efficiency.

  • NPT (API-LP)– American tapered pipe thread, ANSI/ASME B1.20.1
  • For 1:16 taper internal threads
  • 15˚ left-hand spiral flute geometry / reduces vibration
  • Specialized TIALN T46 multi-layer PVD coated for heat and wear resistance
  • Increased core diameter
  • Extended 14 cutting teeth profile to produce API LP threads
  • Multiple thread sizes possible with 1 tool
  • External shank coolant channels guide coolant directly to the cutting zone

GFI - API  (NPT)
Part Number Description Stock
USA
Stock
Germany
GFT8B209.9676 1/16" or 1/8" -27 Thread Mill GFI Pipe Thread-LHF
 
GFT8B219.9677 1/4" or 3/8" -18 Thread Mill GFI Pipe Thread-LHF
 
GFT8B239.9678 1/2" or 3/4" -14 Thread Mill GFI Pipe Thread-LHF
 
GFT8B259.9679 1" or 2" -11 1/2 Thread Mill GFI Pipe Thread-LHF