Accupro B080200R Corner Radius Boring Bar Solid Carbide

Product Description

The ACCUPRO B080200R is a corner radius boring bar designed for precision internal machining in small-bore applications. Built from submicron solid carbide with a bright finish coating, it delivers the rigidity and edge retention needed for tight-tolerance work. The bar cuts right-hand and handles a minimum bore diameter of 0.08 inches with a maximum bore depth of 0.2 inches (13/64 inches). The 1/8-inch shank diameter and 1-1/2-inch overall length make it well suited for compact setups on CNC lathes and manual boring operations where space is limited. Machinists and toolroom technicians are the primary users.

This boring bar is used in precision turning and boring operations where a controlled corner radius is required at the base of a bored feature. It is appropriate for ferrous and non-ferrous workpieces in both production and job-shop environments. The corner radius range of 0.003 to 0.005 inches reduces stress concentration at bore transitions and supports finish-quality interior profiles. It is typically used in CNC lathe toolholders sized for a 1/8-inch shank bore.

Key Features

• Submicron solid carbide construction for high wear resistance and edge stability in small-bore work
• Corner radius range of 0.003 to 0.005 inches for controlled bore-floor geometry
• Bright finish coating with no added coating thickness to maintain dimensional accuracy
• Right-hand cutting direction for standard lathe and boring machine setups
• Compact 1/8-inch shank diameter suits tight-clearance toolholders
• 1-1/2-inch overall length keeps overhang minimal to reduce chatter

Compatibility

Designed for use in toolholders accepting a 1/8-inch shank boring bar; verify minimum bore clearance of 0.08 inches and maximum bore depth requirement of 0.2 inches before installation.

Installation Notes

Installation is performed by machinists familiar with lathe or boring mill toolholding systems. Secure the shank fully within the toolholder to the manufacturer-specified minimum engagement length to reduce deflection. Ensure the machine spindle is fully stopped and the machine is locked out before changing or adjusting tooling. Do not exceed the rated maximum bore depth of 0.2 inches, as exceeding this dimension risks tool breakage in submicron carbide tooling.