Accupro ACC-BBL3601250 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL3601250 is a solid carbide boring bar designed for internal diameter boring operations on metal workpieces. Manufactured from submicron-grade solid carbide with a bright finish coating, this tool delivers consistent cutting performance in tight-tolerance applications. It features a left-hand cutting direction, a minimum bore diameter of 0.36 inches, and a maximum bore depth of 1.25 inches. The 3/8-inch shank diameter and 2.5-inch overall length make it well suited for compact setups on CNC lathes and manual turning centers. Machinists and tool-and-die professionals rely on submicron carbide grades for their wear resistance and edge retention in ferrous and non-ferrous materials.

This boring bar is intended for precision internal turning and bore finishing operations in machine shop environments, both production and job-shop settings. The left-hand cutting direction suits specific tooling orientations, such as back-boring or setups requiring climb-cut geometry. Its compact dimensions allow access to smaller bore diameters where larger tooling cannot reach. Typical users include CNC machinists, manual lathe operators, and toolmakers performing tight-tolerance ID work on a variety of workpiece materials.

Key Features

• Submicron solid carbide construction for superior wear resistance and edge retention
• Left-hand cutting direction for back-boring and specialized tooling orientations
• Minimum bore diameter of 0.36 inches for small-bore applications
• Maximum bore depth of 1.25 inches suitable for shallow to mid-depth internal cuts
• Bright finish coating reduces built-up edge in non-ferrous materials
• 3/8-inch shank diameter fits standard boring bar holders and tool blocks

Compatibility

Designed as an OEM-style replacement and standard tooling option for 3/8-inch boring bar holders used on CNC and manual lathes requiring left-hand internal cutting tools.

Installation Notes

Installation is performed by qualified machinists familiar with lathe tooling setup. Ensure the machine is powered down and the spindle is fully stopped before inserting or removing the boring bar from its holder. Secure the shank firmly in the tool block to the holder manufacturer's specified clamping requirements to prevent tool deflection or pullout during cutting. Verify cutting direction and tool orientation against the programmed or manual feed direction before engaging the workpiece.