Irwin Hanson 1903ZR NPT Taper Pipe Tap - 1/4-18

The Irwin Hanson 1903ZR is a high-quality taper pipe tap designed for cutting precise internal NPT (National Pipe Taper) threads in pipes and fittings. This 1/4-inch, 18 threads per inch tap is engineered to create leak-resistant threaded connections in pipe systems.

Key Features:

• Cuts internal NPT threads in pipes and pipe fittings
• 1/4-inch nominal size matches standard pipe fitting dimensions
• 18 threads per inch for proper NPT thread specification
• Tapered design at 3/4-inch per foot for tight, leak-proof seals
• Ideal for plumbing, hydraulic, and pneumatic applications
• Manufactured to ANSI/ASME B1.20.1 NPT thread standards

NPT taps feature a tapered thread form that creates increasingly tighter engagement as the fitting is threaded into place, providing excellent sealing characteristics for pressurized systems. The nominal size refers to the internal diameter of the pipe being tapped, not the actual tap dimensions.