Accupro ACC-BB230900G Boring Bar Solid Carbide Tin

Product Description

The ACCUPRO ACC-BB230900G is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built from micrograin solid carbide, it delivers superior rigidity and edge retention compared to steel-bodied alternatives. The bar features a TiN (titanium nitride) finish coating that reduces friction and extends tool life in ferrous and non-ferrous materials. With a minimum bore diameter of 0.23 inches and a maximum bore depth of 0.9 inches, this bar is suited for small-bore finish and semi-finish turning work where dimensional accuracy is critical. It is installed by machinists and toolroom technicians working in precision machining environments.

This boring bar fits standard 5/16-inch shank tool holders and is used in applications requiring tight tolerance internal diameters in small bores. At 2.5 inches overall length, it is compact and well-suited for short-reach boring on swiss-type lathes, turret lathes, and general-purpose CNC turning centers. Typical applications include bore sizing, counterboring, and back-boring in production and job-shop settings handling small components such as hydraulic fittings, valve bodies, and precision bushings.

Key Features

• Micrograin solid carbide construction for enhanced rigidity and wear resistance
• TiN finish coating reduces cutting friction and increases tool longevity
• Right-hand cutting direction for standard lathe rotation setups
• Minimum bore diameter of 0.23 inches enables work on small internal features
• Maximum bore depth of 0.9 inches suits shallow to mid-depth boring passes
• 5/16-inch shank diameter fits widely available tool holders and turret blocks

Compatibility

Designed for use in 5/16-inch shank boring bar holders on CNC and manual turning centers capable of internal boring operations.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the lathe spindle is fully stopped and locked out before mounting or removing the boring bar from the tool holder. Secure the shank firmly in the holder with appropriate set screws to minimize tool deflection during the cut. Do not exceed the stated maximum bore depth, as overhang beyond recommended limits significantly increases the risk of chatter and tool breakage.