Besly 1-1/4-11-1/2 NPTF 5 Flute Taper Pipe Tap

Besly 1-1/4-11-1/2 NPTF 5 Flute Taper Pipe Tap is a precision internal-threading tool designed to cut NPTF threads in holes for 1-1/4 inch pipe fittings. The 5-flute geometry enhances cutting efficiency and chip control as the taper form reproduces the tapered thread required for NPTF connections, aligning with the 11-1/2 threads-per-inch (11.5 TPI) specification for this size. This tap is used in metalworking, plumbing fabrication, and maintenance tasks to create or repair threaded openings intended to accept NPTF fittings of the same size. By delivering the correct taper and pitch, it enables proper engagement with corresponding male fittings, supporting reliable assembly in industrial piping, hydraulic, and pneumatic applications. The Besly brand identifies a tool designed for professional workshop use and compatibility with standard tapping setups in typical drilling and alignment workflows.