Hertel 793 3/4 Standard Pipe Tap 3/4-14 Npt 5 Flutes

Product Description

The HERTEL 793 3/4 is a standard pipe tap designed to cut internal NPT (National Pipe Taper) threads in metal workpieces. It produces a 3/4-14 thread profile, meaning 3/4-inch nominal pipe size at 14 threads per inch, and features 5 flutes for efficient chip evacuation during the tapping operation. Constructed from carbon steel with a bright, uncoated finish, this tap delivers reliable performance in general-purpose threading applications. The overall length is 3.25 inches. It is installed by machinists and plumbers working to produce threaded pipe fittings, couplings, and port connections in production and field environments.

This tap is suited for threading operations in ferrous and non-ferrous metals where NPT pipe threads are required. Typical applications include threading ports in manifolds, fittings, and housings found in HVAC, plumbing, and fluid-handling systems. The 5-flute design supports hand tapping and machine tapping setups. The bright finish is standard for general-purpose work where a specialized coating is not required by the application.

Key Features

• 3/4-14 NPT thread profile for standard pipe thread applications
• 5-flute construction promotes chip clearing and smooth thread cutting
• Carbon steel construction provides adequate hardness for general-purpose threading
• Bright, uncoated finish suitable for standard cutting environments
• Regular hook geometry for balanced cutting action
• Shank diameter of 0.9063 inches for secure chuck or tap-holder engagement

Compatibility

Designed for use in standard hand-tapping or machine-tapping setups requiring a 3/4-14 NPT thread form. Compatible with tap handles and machine tap holders sized to accept a 0.9063-inch shank diameter.

Installation Notes

This tap should be installed by a qualified machinist or tradesperson familiar with pipe thread cutting procedures. Secure the workpiece firmly before beginning the tapping operation, and apply cutting fluid appropriate for the workpiece material to reduce heat and extend tap life. Start the tap square to the hole to avoid cross-threading and damaged threads. Reverse periodically to break chips and clear the flutes when hand tapping.