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The VALUE COLLECTION MSC-04663050 is a 1/2-14 NPT interrupted thread pipe tap designed for cutting internal pipe threads in ferrous and non-ferrous materials. Built from high-speed steel with a bright uncoated finish, this tap features 5 flutes and an interrupted thread geometry that reduces torque, improves chip evacuation, and extends tool life in demanding threading applications. The shank diameter is 0.6875 inches and the square size measures 0.515 inches, making it compatible with standard tap wrenches and machine holders. Machinists, pipefitters, and plumbers use this tap when threading fittings, manifolds, or pipe connections to NPT standard.
This pipe tap is suited for threading 1/2-inch NPT pipe connections in both shop and field environments. It is appropriate for use in metal fabrication, plumbing rough-in, HVAC piping assemblies, and industrial maintenance applications where a reliable NPT thread form is required. The interrupted thread design is especially useful in blind holes or when working with materials that produce long, stringy chips. The regular hook geometry provides stable cutting action across a range of materials including mild steel, cast iron, and aluminum.
Designed for cutting 1/2-14 NPT internal pipe threads; fits standard tap wrenches and machine tap holders accepting a 0.6875-inch shank diameter.
This tap is installed and driven by a qualified machinist or pipefitter using a tap wrench or appropriate machine holder. Always secure the workpiece firmly and apply cutting fluid appropriate for the workpiece material before threading. Ensure the tap is started square to the hole to avoid cross-threading or tap breakage. Inspect cutting edges before each use and replace worn taps promptly to maintain thread quality.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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