Kennametal 4131809 Pipe Tap 1/2-14 Nptf 4 Flutes Hss

Product Description

The KENNAMETAL 4131809 is a standard pipe tap designed to cut 1/2-14 NPTF (National Pipe Taper Fuel) threads in metal workpieces. It is manufactured from high-speed steel (HSS) with a bright, uncoated finish and features 4 flutes for efficient chip evacuation during tapping operations. With an overall length of 3.13 inches and a thread length of 1.656 inches, this tap is sized for use in machine shops, maintenance facilities, and fabrication environments. It is used by machinists, pipefitters, and millwrights who need accurate, pressure-tight NPTF threads in ferrous and non-ferrous materials.

This tap is suited for threading pipe connections in hydraulic, pneumatic, and fuel line applications where NPTF thread form is required for a dryseal fit. The 1/2-14 thread size is among the most common in industrial piping systems, making this tap a standard tool in production and repair operations. It is appropriate for use in both manual tapping handles and machine tapping setups at controlled feed rates.

Key Features

• 1/2-14 NPTF thread form for dryseal pipe connections
• 4-flute design promotes efficient chip removal during threading
• High-speed steel construction provides hardness and wear resistance
• Bright, uncoated finish suitable for general-purpose tapping applications
• Regular hook geometry compatible with standard tapping equipment
• Shank diameter of 0.687 inches fits standard tap holders and chucks

Compatibility

Designed as a standard NPTF pipe tap for use in manual tap wrenches and machine tapping setups that accept a 0.687-inch shank diameter with a 0.515-inch square drive.

Installation Notes

This tap is installed by licensed machinists or qualified tradespeople using a properly sized tap wrench or machine tapping setup. Always ensure the workpiece is securely fixtured and use appropriate cutting fluid to extend tool life and improve thread quality. Do not exceed the recommended feed rate for the material being tapped, and back off periodically to break chips. Inspect the tap for wear or damage before each use.