Accupro Acc -T2901250 Threading Tool Internal Solid Carbide

Product Description

The ACCUPRO ACC -T2901250 is a single point internal threading tool ground from solid carbide for use on CNC lathes and manual turning centers. It handles a threading range of 12 to 40 TPI and cuts to a depth of 1.25 inches, making it suitable for threading through-holes and blind bores in steel, cast iron, aluminum, and similar machinable materials. The bright, uncoated finish maintains sharp edge geometry out of the box. With a 5/16-inch shank and a 2.5-inch overall length, this tool fits standard boring bar holders and quick-change toolposts commonly found in production and job-shop environments. Machinists and tooling specialists are the primary users.

This tool is designed for internal threading operations where the minimum thread diameter is 0.29 inches. The 60-degree profile angle covers the most common unified and metric thread forms cut on production lathes. It is appropriate for both low-volume job work and higher-volume turning cell applications. The 0.07-inch projection from the edge provides clearance during pass entry and exit. No coolant-through capability means this tool is best suited for flood coolant or dry cutting setups rather than high-pressure through-tool coolant systems.

Key Features

• Solid carbide construction for rigidity and wear resistance in interrupted and continuous threading cuts
• Internal thread type with a 60-degree profile angle covering common unified and metric forms
• Threading range of 12 to 40 TPI in a single tool
• 1.25-inch cut depth accommodates deeper bores without tool change
• Bright, uncoated finish preserves as-ground edge sharpness for precision thread forms
• 5/16-inch shank fits standard boring bar and quick-change toolpost holders

Compatibility

Designed as an OEM-style single point threading insert tool for use in standard 5/16-inch shank boring bar holders and quick-change toolpost systems on CNC and manual lathes performing internal threading operations.

Installation Notes

Installation is performed by qualified machinists or tooling setup technicians. Power down and lock out the lathe spindle before seating or removing the tool from its holder. Verify shank seating and holder clamp torque per the machine or toolholder manufacturer specifications before running. Confirm thread pitch and profile angle match the workpiece drawing before beginning a threading cycle.