Accupro SAT290400-12 Single Point Threading Tool 12 Tpi

Product Description

The ACCUPRO SAT290400-12 is a solid carbide single point threading tool designed for internal thread cutting on CNC lathes and manual turning centers. It features a 29-degree profile angle and cuts threads at 12 TPI with a maximum cutting depth of 0.4 inches. The minimum threading diameter is 0.23 inches, making it suited for small-bore internal thread applications. The tool ships bright and uncoated, preserving the carbide substrate for general-purpose threading. Machinists and tool-and-die professionals working in precision shops are the primary users of this style of insert-style threading bar.

This threading tool is configured for internal applications where a boring-bar-style holder or direct shank mounting is required. The 5/16-inch shank diameter and 2.5-inch overall length suit compact toolholders on smaller lathes and Swiss-type machines. The 0.07-inch projection from edge and 0.033-inch flat width allow the tool to engage fine-pitch threads in tight bores. It is appropriate for use in job shops, production machining environments, and maintenance repair operations requiring precise internal thread profiles.

Key Features

• Solid carbide construction for rigidity and wear resistance in internal threading operations
• 29-degree profile angle for accurate thread form geometry
• 12 TPI maximum thread pitch with 0.4-inch cutting depth capacity
• 0.23-inch minimum threading diameter for small-bore internal threads
• 5/16-inch shank diameter with 2.5-inch overall length for compact toolholder compatibility
• Bright and uncoated finish — no coating buildup to affect thread profile tolerances

Compatibility

Designed as an OEM-style single point threading tool for use in standard 5/16-inch bore internal threading toolholders on CNC and manual lathes performing internal thread cutting operations.

Installation Notes

Installation is performed by qualified machinists. Secure the shank fully in the toolholder to the manufacturer-recommended clamping depth before engaging the workpiece. Confirm spindle speed, feed rate, and depth-of-pass settings are appropriate for carbide tooling and the workpiece material before initiating the threading cycle. Do not exceed the rated cutting depth of 0.4 inches per pass.