Scientific Cutting Tools TT320750A Threading Tool Internal

Product Description

The SCIENTIFIC CUTTING TOOLS TT320750A is a solid carbide single point threading tool designed for internal thread cutting on CNC lathes and turning centers. It handles a minimum threading diameter of 0.32 inches and cuts threads from 10 to 32 TPI using a 60-degree profile angle. The 0.375-inch shank and 0.75-inch cutting depth make it well suited for through and blind-bore threading applications. An AlTiN Plus coating provides heat and wear resistance during dry or semi-dry machining. This tool is used by CNC machinists and tool-and-die professionals working in production and job-shop environments.

This threading insert tool is appropriate for internal threading operations in ferrous and non-ferrous materials where consistent thread form and tool life are priorities. With a 2.5-inch overall length and 0.075-inch projection from the edge, the TT320750A fits standard 3/8-inch bore toolholders used on common production lathes and Swiss-style turning machines. It is suited for applications requiring fine to medium thread pitches in tight-tolerance bores.

Key Features

• Solid carbide construction for rigidity and wear resistance in internal threading
• AlTiN Plus coating improves heat resistance and extends tool life in dry cutting
• 60-degree profile angle covers unified, metric, and other standard V-thread forms
• Threading range of 10 to 32 TPI accommodates a wide range of thread pitches
• 0.075-inch projection from edge allows thread cutting close to bore walls
• No coolant-through design simplifies toolholder setup

Compatibility

Designed for use with standard 3/8-inch bore internal threading toolholders on CNC lathes and turning centers configured for single point threading operations.

Installation Notes

Installation and setup should be performed by a qualified CNC machinist or tooling technician. Ensure the machine spindle is fully stopped and the turret is indexed safely before inserting or removing the tool from the holder. Verify shank clamping torque per the toolholder manufacturer specifications and confirm tool centerline height before running the threading cycle. Always verify thread pitch programming against the tool TPI range before beginning a cut.