Scientific Cutting Tools TT290750A Threading Tool Internal

Product Description

The SCIENTIFIC CUTTING TOOLS TT290750A is a solid carbide single point threading tool designed for internal thread cutting operations on CNC lathes and turning centers. Built for precision, it covers a threading range of 12 to 40 TPI with a minimum threading diameter of 0.29 inches and a maximum cutting depth of 0.75 inches. The tool features a 60-degree profile angle suited for standard unified and metric thread forms. An AlTiN+ coating improves heat resistance and tool life in demanding cutting conditions. Machinists and toolroom professionals will find this a reliable choice for tight-tolerance internal threading work.

This tool is intended for internal threading applications in ferrous and non-ferrous materials where a solid carbide substrate and hard coating deliver consistent performance. With a 5/16-inch shank diameter and an overall length of 2.5 inches, it fits standard boring bar holders and tooling blocks used in production and job-shop environments. The 0.07-inch projection from edge allows threading access in typical bored-hole configurations. It is suited for both production runs and repair threading operations on manual or CNC turning equipment.

Key Features

• Solid carbide construction for rigidity and wear resistance in internal threading
• AlTiN+ coating for elevated heat resistance and extended tool life
• Threading range of 12 to 40 TPI covers a broad range of common thread pitches
• 60-degree profile angle compatible with standard unified thread forms
• 0.29-inch minimum threading diameter for smaller internal bore applications
• 5/16-inch shank diameter fits standard tooling holders without modification

Compatibility

Designed as an OEM-style single point threading tool for use in internal threading operations on CNC and manual lathes equipped with standard 5/16-inch shank tooling systems.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist or CNC operator familiar with threading operations. Ensure the machine spindle is fully stopped and the tool holder is properly torqued before beginning setup. Verify shank engagement depth meets the toolholder manufacturer minimum before cutting. Do not exceed the tool's rated cutting depth or minimum threading diameter during operation.