Accupro B2301200R Corner Radius Boring Bar Solid Carbide

Product Description

The ACCUPRO B2301200R is a corner radius boring bar designed for internal turning and boring operations on CNC and manual lathes. Machined from submicron-grade solid carbide, it delivers superior wear resistance and edge retention compared to standard carbide grades. The bar has a minimum bore diameter of 0.23 inches and a maximum bore depth of 1.2 inches, with a shank diameter of 5/16 inches and an overall length of 2.5 inches. The bright finish reduces friction and built-up edge during cutting. Machinists and tool-and-die professionals reach for this bar when dimensional accuracy and surface finish quality are critical in small-bore applications.

This boring bar is suited for precision internal boring in ferrous and non-ferrous materials across job shop, production machining, and toolroom environments. The right-hand cutting direction makes it compatible with conventional lathe spindle rotation. A corner radius range of 0.005 to 0.008 inches provides a controlled blend at the bore floor, reducing stress concentrations in finished workpieces. It is appropriate for tight-tolerance bores where chatter control and rigidity matter, particularly in small-diameter work where carbide rigidity outperforms high-speed steel alternatives.

Key Features

• Submicron solid carbide construction for extended tool life and consistent edge geometry
• Minimum bore diameter of 0.23 inches suits tight internal features
• Maximum bore depth of 1.2 inches allows reach into moderately deep bores
• Corner radius of 0.005 to 0.008 inches reduces stress risers at the bore floor
• Bright finish coating minimizes friction and chip adhesion
• Right-hand cut configuration for standard lathe spindle rotation

Compatibility

Designed as an OEM-style solid carbide boring bar for use in standard boring bar holders accepting a 5/16-inch shank diameter on CNC lathes and manual turning centers.

Installation Notes

Installation is performed by qualified machinists following shop safety procedures. Power down and lock out the machine spindle before securing or changing tooling. Ensure the shank is fully seated and clamped in the boring bar holder with appropriate torque per the holder manufacturer's specification. Verify bore diameter and depth settings with calibrated gauging before running production cuts.