Accupro B200500R Corner Radius Boring Bar Submicron Carbide

Product Description

The ACCUPRO B200500R is a corner radius boring bar designed for precision internal machining operations. Built from submicron solid carbide with a bright finish coating, it delivers consistent performance in tight-bore applications. The bar cuts right-hand and handles a minimum bore diameter of 0.2 inches with a maximum bore depth of 0.5 inches. The 0.25-inch shank diameter and 2.5-inch overall length make it well-suited for small-bore work on CNC lathes and manual turning centers. Corner radius range spans 0.005 to 0.008 inches, allowing controlled edge geometry for finishing passes in hardened or abrasive materials.

This boring bar is used in metalworking applications where precise internal diameter finishing or corner form control is required. It fits standard 0.25-inch boring bar holders and is appropriate for production turning, tool rooms, and job shops working with tight-tolerance bores in ferrous and non-ferrous materials. Machinists and toolroom operators select this bar when bore depth is shallow and diameter control is critical. The submicron carbide grade supports use in interrupted cuts and abrasive workpiece materials where standard carbide grades wear prematurely.

Key Features

• Submicron solid carbide construction for extended tool life in abrasive materials
• Right-hand cutting direction for standard lathe and boring head setups
• Corner radius range of 0.005 to 0.008 inches for controlled edge geometry
• Bright finish coating for reduced friction and improved chip evacuation
• 0.25-inch shank diameter fits common boring bar holder sizes
• 2.5-inch overall length suitable for compact tooling setups

Compatibility

Designed for use in standard 0.25-inch boring bar holders on CNC and manual turning centers. Suitable for right-hand internal boring operations requiring a minimum bore diameter of 0.2 inches.

Installation Notes

This boring bar is installed and serviced by machinists and toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing or setting tooling. Secure the shank in the holder to the full recommended engagement depth to minimize overhang and chatter. Do not exceed the rated maximum bore depth of 0.5 inches, as deeper cuts increase deflection risk and can compromise dimensional accuracy.