Accupro B3202500R Corner Radius Boring Bar Solid Carbide

Product Description

The ACCUPRO B3202500R is a corner radius boring bar designed for precision internal turning and boring operations on CNC and manual lathes. Machined from submicron-grade solid carbide, it offers superior wear resistance and edge retention compared to standard carbide grades. The bar features a right-hand cutting direction, a 3/8 inch shank diameter, and a 4 inch overall length. The corner radius range of 0.005 to 0.008 inches makes it well suited for applications requiring controlled edge breaks and fine surface finishes on bored features. This tool is typically installed and operated by machinists and CNC turning specialists working in precision component manufacturing.

The B3202500R handles a minimum bore diameter of 0.32 inches and a maximum bore depth of 2.5 inches, making it appropriate for small-diameter deep boring work in materials such as steel, aluminum, and other machinable alloys. It is commonly used in job shops, production turning cells, and toolroom environments where tight tolerances and repeatable corner geometry are required. The bright finish coating reduces built-up edge in certain workpiece materials and assists with chip evacuation in confined bore profiles.

Key Features

• Submicron solid carbide construction for extended tool life and edge stability
• Right-hand cutting direction for standard CNC and manual lathe setups
• Minimum bore diameter of 0.32 inches for small-bore applications
• Maximum bore depth of 2.5 inches for reaching deep features
• Corner radius range of 0.005 to 0.008 inches for controlled edge geometry
• Bright finish coating to reduce built-up edge and aid chip flow

Compatibility

Designed as a direct-fit boring bar for tool holders and boring bar sleeves accepting a 3/8 inch round shank. Verify holder bore diameter and clamping style before installation.

Installation Notes

Installation is performed by machinists using appropriate boring bar holders or sleeves rated for 3/8 inch shanks. Ensure the machine spindle and all axis drives are powered down and locked out before changing tooling. Confirm shank runout and overhang length against the manufacturer or shop standard before commencing a cut. Do not exceed the maximum bore depth rating, as excessive overhang increases vibration and can compromise surface finish and tool integrity.