Accupro B1801250R Corner Radius Boring Bar Solid Carbide

Product Description

The ACCUPRO B1801250R is a corner radius boring bar machined from submicron solid carbide for high-precision internal turning operations. Designed for right-hand cutting, it features a minimum bore diameter of 0.18 inches and accepts a corner radius range of 0.0050 to 0.0080 inches, allowing machinists to produce tight, controlled inside corner geometry. The 1/4-inch shank diameter and 2.5-inch overall length make it well-suited for small-bore work in CNC lathes and manual turning centers. A bright finish coating is applied to the carbide substrate, supporting clean chip evacuation and consistent tool life across a variety of workpiece materials.

This boring bar is intended for precision machining environments where small internal diameters and defined corner radii are required. Typical applications include finish boring of hydraulic valve bodies, bearing seats, and close-tolerance bores in aerospace, automotive, and general manufacturing components. The maximum bore depth of 1.25 inches suits through-bore and blind-bore work in small-diameter features. It is installed in standard 1/4-inch boring bar holders and tool blocks compatible with CNC turning centers and manual lathes.

Key Features

• Submicron solid carbide construction for rigidity and wear resistance in small-bore applications
• Corner radius range of 0.0050 to 0.0080 inches for precise inside corner geometry control
• Right-hand cutting orientation for standard OD and ID turning setups
• Bright finish coating supports chip flow and surface finish consistency
• 1/4-inch shank diameter fits common boring bar holders on CNC and manual lathes
• Compact 2.5-inch overall length reduces overhang and vibration in tight bore conditions

Compatibility

Designed for use in standard 1/4-inch boring bar holders on CNC turning centers and manual lathes capable of internal turning operations with a minimum bore diameter of 0.18 inches.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the shank fully within the boring bar holder to the recommended clamping depth before engaging the workpiece. Ensure the machine spindle is fully stopped and all motion has ceased before indexing or changing tooling. Verify tool centerline height and confirm corner radius selection matches the programmed or manually set tool path before taking a cut.