Brubaker Tool 134HNA 1 1 4-11 1 2 NPT Taper Pipe Tap

Brubaker Tool 134HNA is a taper pipe tap sized for 1-1/4 inch National Pipe Taper (NPT) threads, cutting internal threads with an 11-1/2 TPI pitch to accept 1-1/4 NPT fittings. This Brubaker tap features a five-flute cutting head designed for efficient metal removal in steel, cast iron, and other common machinable metals, with many Brubaker taps offered in high-speed steel (HSS) and TiN-coated variants for wear resistance. The 134HNA designation identifies a Brubaker model within its NPT taper tap lineup. The tap is designed for standard right-hand threading to produce NPT threads and is commonly used in plumbing, hydraulic, and pneumatic assemblies, as well as repair or fabrication tasks requiring 1-1/4″ NPT ports. For best results, use appropriate cutting fluid and steady, straight feed to maintain thread quality and avoid cross-threading; ensure proper hole size and alignment prior to tapping.