Accupro ACC-BBL2901500 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL2901500 is a left-hand cut boring bar manufactured from submicron-grade solid carbide. It is designed for internal boring operations on lathes and turning centers where precise, small-diameter bores are required. With a minimum bore diameter of 0.29 inches and a maximum bore depth of 1.5 inches, this bar handles tight-tolerance work in ferrous and non-ferrous materials. The bright finish coating reduces friction and aids chip evacuation. The 5/16-inch shank diameter and 2.5-inch overall length make it well suited for compact tooling setups. Machinists and tool-and-die professionals working in production or job-shop environments are the primary users.

This boring bar is intended for use in CNC and manual lathe applications requiring left-hand cutting direction. It is appropriate for small-bore internal turning where submicron carbide substrate provides the edge retention and rigidity needed to hold dimensional tolerances. Typical install scenarios include finish boring of hydraulic valve bodies, manifold passages, and precision fixture components. The bright-finished carbide construction supports use across a range of materials without requiring additional coatings for general-purpose boring tasks.

Key Features

• Submicron solid carbide substrate for superior edge retention and rigidity in small-bore applications
• Left-hand cutting direction for specific lathe orientations and back-boring setups
• Minimum bore diameter of 0.29 inches enables access to tight internal features
• Maximum bore depth of 1.5 inches suits a wide range of shallow-to-moderate boring requirements
• Bright finish coating reduces friction and promotes chip flow
• 5/16-inch shank diameter provides a compact, secure fit in standard boring bar holders

Compatibility

Designed as an OEM-style boring bar compatible with standard 5/16-inch boring bar holders used on CNC and manual lathes configured for left-hand internal turning operations.

Installation Notes

Installation and tool-setting should be performed by a qualified machinist. Ensure the lathe spindle is fully stopped and locked before mounting or adjusting the boring bar. Secure the shank in the tool holder to the full recommended engagement depth to minimize overhang and reduce chatter. Verify cutting direction and spindle rotation match the left-hand geometry of this bar before initiating a cut.