Accupro ACC-BB080300G Boring Bar Solid Carbide Tin

Product Description

The ACCUPRO ACC-BB080300G is a micrograin solid carbide boring bar engineered for small-diameter internal boring operations on CNC lathes and manual turning centers. It cuts right-hand with a minimum bore diameter of 0.08 inches and a maximum bore depth of 0.3 inches. The 1/8-inch shank diameter and 1-1/2-inch overall length make it well suited for tight-clearance bores where rigidity and precision are critical. A titanium nitride (TiN) finish coating improves surface hardness and extends tool life in ferrous and non-ferrous applications. Machinists and tool-and-die professionals rely on micrograin carbide grade for its fine grain structure, which supports sharper cutting edges and tighter tolerances.

This boring bar is intended for small-bore finish and semi-finish turning work in precision machining environments. Typical applications include bore sizing, counterboring, and internal diameter finishing on parts where standard insert tooling cannot reach. The compact shank fits standard 1/8-inch boring bar holders and tool blocks used on bench lathes, turret lathes, and Swiss-style turning machines. It is appropriate for both production shop use and toolroom work requiring consistent, repeatable bore geometry.

Key Features

• Micrograin solid carbide construction for sharp edge retention and dimensional stability
• TiN coating increases surface hardness and reduces tool wear in continuous cutting
• 0.08-inch minimum bore diameter allows access to very small internal diameters
• Right-hand cutting direction compatible with standard lathe spindle rotation
• 1/8-inch shank diameter fits common small-bore toolholders without adapters
• 1-1/2-inch overall length provides clearance for typical shallow-bore workholding setups

Compatibility

Designed for use in 1/8-inch boring bar holders on CNC and manual turning equipment capable of accommodating solid carbide boring bars of this shank size and overall length.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding guidelines. Power down and lock out the spindle before mounting or removing tooling. Secure the shank fully within the holder to the recommended engagement depth to minimize overhang-related vibration. Avoid side-loading the bar beyond its rated bore depth, as solid carbide is rigid but brittle under shock or interrupted cuts.