Kennametal 4130588 Pipe Tap 1/2-14 Nptf 4 Flute Hss Tin

Product Description

The KENNAMETAL 4130588 is a standard pipe tap designed to cut NPTF (National Pipe Taper Fuel) threads in ferrous and non-ferrous materials. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it threads 1/2-14 pipe connections with a 1.656-inch thread length and 3.13-inch overall length (OAL). The TiN finish increases surface hardness and reduces friction, extending tool life in production and maintenance environments. With 4 flutes and a regular hook geometry, it provides consistent chip evacuation and clean thread form. Plumbers, pipefitters, and maintenance machinists use this tap for creating leak-resistant NPTF threaded ports and fittings.

This tap is suited for threading 1/2-14 NPTF connections in pipe fittings, manifolds, hydraulic blocks, and fluid system components. NPTF threads are designed to seal on the threads themselves without sealant, making accurate tap geometry critical. It is commonly used in residential and commercial plumbing, industrial fluid power, and HVAC refrigerant or fuel line applications where a dry-seal threaded joint is required. The tap is sold individually and is appropriate for both manual and machine tapping operations.

Key Features

• NPTF thread form for dry-seal pipe connections at 1/2-14 thread size
• High-speed steel construction provides toughness and wear resistance across a range of materials
• Titanium nitride (TiN) coating extends tool life and reduces galling
• 4-flute regular hook geometry supports controlled chip flow and consistent thread accuracy
• 3.13-inch OAL with 0.687-inch shank diameter fits standard tap holders and chucks
• 0.515-inch square drive end compatible with standard tap wrenches

Compatibility

Designed as an OEM-style replacement or direct-use pipe tap for applications requiring 1/2-14 NPTF threaded ports in pipe fittings, valves, and fluid system housings.

Installation Notes

Pipe taps of this type are installed by licensed plumbers, pipefitters, and qualified machinists following applicable code requirements such as the IPC and IFGC for threaded pipe joints. Always secure the workpiece firmly and use appropriate cutting fluid for the base material before tapping. Apply steady, even torque with a calibrated tap wrench or machine tapping arm, backing off periodically to break chips. Inspect the finished thread with a NPTF thread gauge before assembly to confirm seal integrity.