Accupro ACC-BB120500A Boring Bar Micrograin Solid Carbide

Product Description

The ACCUPRO ACC-BB120500A is a micrograin solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. It cuts in the right-hand direction and reaches a minimum bore diameter of 0.12 inches with a maximum bore depth of 0.5 inches. The 3/16-inch shank diameter and 2-inch overall length make this a compact tool suited for tight-tolerance small-bore work. A TiAlN finish coating improves heat resistance and extends cutting edge life in ferrous and hardened materials. Machinists and tool-and-die professionals use this bar where consistent finish and dimensional accuracy in small bores are required.

This boring bar is intended for small-bore internal turning applications in production and job-shop environments. It is well matched to operations on steel, stainless, and hardened materials where micrograin carbide and TiAlN coating provide a performance advantage over standard carbide grades. The compact geometry suits Swiss-type, turret, and bench lathes where clearance around small-diameter bores is limited. It ships as a single unit and is ready to mount without additional tooling assembly.

Key Features

• Micrograin solid carbide construction for improved wear resistance and edge strength
• TiAlN finish coating for elevated heat resistance in ferrous and hardened material cutting
• Right-hand cutting direction for standard lathe setup
• 0.12-inch minimum bore diameter enables work in very small internal features
• 0.5-inch maximum bore depth suitable for shallow internal turning passes
• 3/16-inch shank diameter fits standard small-bore toolholders without adapters

Compatibility

Designed as an OEM-style replacement or direct-fit boring bar for small-bore toolholders accepting a 3/16-inch shank diameter on CNC and manual turning centers.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before mounting or removing the boring bar. Secure the shank fully within the toolholder to the recommended grip length to minimize deflection at small bore diameters. Inspect the cutting edge for chipping before each use, as micrograin carbide is brittle under interrupted cuts or excessive overhang.