Accupro ACC-BB3201500 Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO ACC-BB3201500 is a solid carbide boring bar designed for internal boring operations on CNC lathes and manual turning centers. Built from submicron-grade solid carbide with a bright finish, it delivers consistent cutting performance on ferrous and non-ferrous materials. The bar accepts a right-hand cutting direction and achieves a minimum bore diameter of 0.32 inches with a maximum bore depth of 1.5 inches. With a 3/8-inch shank diameter and an overall length of 2.5 inches, this compact tool fits standard boring bar holders commonly found in production and job shop turning setups. Machinists and toolroom technicians are the primary installers and operators of this bar.

This boring bar is suited for light to medium internal finishing and semi-finishing passes in small-diameter bores. Its submicron carbide grade offers wear resistance in high-speed applications and in interrupted cuts where edge toughness matters. The bright (uncoated) finish makes it a practical choice for non-ferrous materials such as aluminum, brass, and copper, where coated tools can cause built-up edge. It fits production environments where bore tolerances are tight and tool deflection must be minimized through a rigid short-overhang setup.

Key Features

• Submicron solid carbide construction for superior hardness and edge retention
• Minimum bore diameter of 0.32 inches for small-bore internal turning
• Maximum bore depth of 1.5 inches suitable for through and blind bore applications
• Right-hand cutting direction for standard lathe rotation
• Bright (uncoated) finish ideal for non-ferrous and gummy materials
• 3/8-inch shank diameter fits common boring bar holders and quick-change toolposts

Compatibility

Designed as an OEM-style replacement and standard tooling option for boring bar holders accepting a 3/8-inch round shank with right-hand cutting orientation on CNC and manual turning centers.

Installation Notes

This tool is installed and operated by machinists and toolroom technicians. Power down and lock out the lathe spindle before changing or adjusting boring bars. Ensure the shank is fully seated and clamped in the boring bar holder with adequate clamping force before resuming cuts. Minimize overhang beyond the holder to reduce deflection and chatter, particularly at the small bore diameters this tool is rated for.