Accupro ACC-BB2901000 Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO ACC-BB2901000 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built from submicron-grade solid carbide with a bright finish coating, this right-hand cutting tool delivers consistent dimensional accuracy in tight-tolerance bores. It accepts a minimum bore diameter of 0.29 inches and reaches a maximum bore depth of 1 inch, making it well suited for small-diameter finish boring work. The 5/16-inch shank diameter and 2.5-inch overall length keep the tool compact and rigid, minimizing deflection during cuts. Machinists and toolroom technicians rely on submicron carbide grades for extended tool life in hardened and abrasive workpiece materials.

This boring bar is intended for small-bore internal turning applications in production machining and toolroom environments. It is appropriate for use on ferrous and non-ferrous materials where a right-hand cutting direction is required. The compact overall length suits gang-tool setups, Swiss-style lathes, and small-capacity turning centers where clearance is limited. Typical applications include finishing bores in hydraulic valve bodies, precision fittings, and small mechanical components where surface finish and bore roundness are critical.

Key Features

• Submicron solid carbide construction for extended tool life in demanding materials
• Minimum bore diameter of 0.29 inches for small-diameter internal turning
• Maximum bore depth of 1 inch provides adequate reach for typical small-bore finishing passes
• Right-hand cutting direction compatible with standard lathe spindle rotation
• Bright finish coating reduces built-up edge in non-ferrous and low-carbon steel applications
• 5/16-inch shank diameter fits standard boring bar holders and quick-change toolposts

Compatibility

Designed as a direct-fit replacement-style boring bar for standard 5/16-inch boring bar holders used on CNC and manual turning centers requiring a right-hand, small-diameter internal boring tool.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered down and the spindle locked before tool changes. Secure the shank in a properly sized boring bar holder, ensuring minimum overhang beyond the holder to reduce deflection. Verify cutting direction and tool height alignment before engaging the spindle. Follow the machine manufacturer and toolholder manufacturer guidelines for torque specifications on clamping screws.