Accupro FAT230400-14 Threading Tool 14 Tpi Internal Carbide

Product Description

The ACCUPRO FAT230400-14 is a single point internal threading tool machined from solid carbide for use on CNC lathes and manual turning centers. It handles internal thread forms with a minimum threading diameter of 0.23 inches and a cutting depth of 0.4 inches. The tool carries a 29-degree profile angle and ships with a bright, uncoated finish. The 5/16-inch shank diameter and 2.5-inch overall length make it suitable for close-tolerance boring bar and toolholder setups. Machinists and CNC operators working in job shops, production turning, or maintenance machining will find this tool sized for small-bore internal threading applications.

This tool is intended for internal threading operations where a minimum bore diameter of 0.23 inches is accessible. At 14 threads per inch, it covers coarser unified or similar thread forms cut on the inside diameter of a workpiece. The 0.055-inch projection from edge keeps the cutting edge close to center, reducing deflection in deep or tight-bore conditions. Typical applications include threading hydraulic fittings, threaded inserts, and small-bore mechanical components in steel, aluminum, and other machinable materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in interrupted and continuous internal threading cuts
• 14 TPI maximum thread capacity suits coarser internal thread forms on small-bore work
• 0.23-inch minimum threading diameter allows access to tight internal features
• 29-degree profile angle for accurate thread form geometry
• 0.055-inch projection from edge minimizes overhang and cutting force deflection
• Bright, uncoated finish compatible with a wide range of cutting fluids and workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 5/16-inch shank internal threading toolholders used in CNC and manual turning applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Secure the shank fully in the toolholder to the recommended engagement depth before beginning any cut. Verify spindle and axis motion are fully stopped and the machine is in an e-stop or lockout-tagout state before indexing or removing the tool. Do not exceed the tool's stated cutting depth or minimum bore diameter, as doing so risks tool fracture with solid carbide tooling.