Accupro ACC-BB200900G Boring Bar Micrograin Solid Carbide

Product Description

The ACCUPRO ACC-BB200900G is a solid carbide boring bar designed for internal diameter boring operations on CNC lathes, turning centers, and manual boring mills. Built from micrograin solid carbide with a titanium nitride (TiN) coating, this bar delivers consistent cutting performance and extended tool life in precision bore work. It features a right-hand cutting direction and accepts a 0.25-inch shank diameter, making it compatible with standard boring bar holders and quick-change tooling systems. At 2.5 inches overall length, it is suited for tight, confined bores where rigidity and minimal deflection are critical.

This boring bar handles minimum bore diameters starting at 0.2 inches and reaches a maximum bore depth of 0.9 inches. It is used in job shops, production machining environments, and toolrooms where small-diameter internal features require tight tolerances. Typical applications include finishing passes on hydraulic component bores, valve bodies, and small precision housings. Machinists and CNC operators working in ferrous and non-ferrous materials will find this tool appropriate for both roughing and finishing passes within its specified bore range.

Key Features

• Micrograin solid carbide construction provides high rigidity and resistance to chipping in small-bore applications
• TiN coating reduces friction and improves wear resistance for longer tool life between regrinds
• Right-hand cutting direction for standard lathe and boring mill setups
• 0.25-inch shank diameter fits common boring bar holders and quick-change tool blocks
• 0.2-inch minimum bore diameter enables access to very small internal diameter features
• Compact 2.5-inch overall length minimizes overhang and reduces deflection risk

Compatibility

Designed as a direct-fit replacement or standard addition for tool setups using 0.25-inch shank boring bar holders on CNC lathes, manual lathes, and boring mills requiring a right-hand solid carbide boring bar.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before seating or removing the boring bar from its holder. Ensure the shank is fully seated and clamped securely in the boring bar holder to the tool manufacturer's recommended clamping procedure before running. Follow your facility's tooling setup standards and machine manufacturer guidelines when setting tool offsets and runout tolerances.