Accupro FAT4901000-8 Single Point Threading Tool 8 Tpi

Product Description

The ACCUPRO FAT4901000-8 is a solid carbide internal single point threading tool designed for precision thread cutting on CNC lathes and manual turning centers. Built from solid carbide, it delivers the rigidity and wear resistance needed for consistent thread profiles in ferrous and non-ferrous materials. The tool cuts internal threads with a minimum threading diameter of 0.49 inches, a maximum of 8 threads per inch (TPI), and a cutting depth of 1 inch. A 29-degree profile angle produces accurate thread form geometry. The bright, uncoated finish suits applications where coating interaction with the workpiece material is a concern.

This tool is suited for machinists and toolroom operators performing internal threading operations on production or job-shop turning equipment. The 1/2-inch shank diameter provides stable tool holding in standard boring bar holders and quick-change toolpost systems. With a 3-inch overall length and a 0.12-inch projection from edge, it reaches into bored holes while maintaining clearance. The 29-degree profile is commonly associated with Acme and similar thread forms used in lead screws, actuators, and mechanical drive components.

Key Features

• Solid carbide construction for high rigidity and extended tool life
• 8 TPI maximum thread rate with 0.49-inch minimum threading diameter
• 1-inch cutting depth accommodates moderate bore lengths
• 29-degree profile angle for accurate Acme-style thread forms
• Bright, uncoated finish — no coating interference with workpiece material
• 1/2-inch shank fits standard boring bar and quick-change holders

Compatibility

Designed as an OEM-style single point threading insert tool for use in standard 1/2-inch shank boring bar holders on CNC and manual turning centers performing internal threading operations.

Installation Notes

Installation and setup should be performed by a qualified machinist familiar with turning center tooling. Power down and lock out the machine before loading or adjusting the tool holder. Ensure the shank is fully seated and clamped to the specified holder torque per the machine tool manufacturer guidelines. Verify thread pitch and profile against part print before initiating the threading cycle.