Accupro ACC-BBL4903000 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL4903000 is a left-hand cut solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built from submicron-grade solid carbide, it delivers the rigidity and wear resistance needed for tight-tolerance bore work in ferrous and non-ferrous materials. With a minimum bore diameter of 0.49 inches and a maximum bore depth of 3 inches, this bar covers a practical range of internal turning applications. The 0.5-inch shank diameter and 6-inch overall length (OAL) make it compatible with standard tooling setups found in production and job-shop environments. Machinists and toolroom technicians will find the bright finish coating appropriate for general-purpose boring where coolant flow and chip evacuation are managed at the machine level.

This boring bar is suited for left-hand turning applications where the spindle direction or part setup requires a left-hand cutting orientation. Typical use cases include single-pass bore finishing, stepped bore work, and ID turning where a right-hand bar cannot reach or orient correctly. The submicron carbide grade supports both dry and wet cutting conditions and is particularly well suited for achieving consistent surface finish on close-tolerance bores in production environments where tool life consistency matters.

Key Features

• Left-hand cut orientation for reverse-spindle or specialized boring setups
• Submicron-grade solid carbide construction for rigidity and extended tool life
• Minimum bore diameter of 0.49 inches for small-bore internal turning
• Maximum bore depth of 3 inches for deeper internal reach
• 0.5-inch shank diameter fits standard boring bar holders and turret tooling
• Bright finish coating suitable for general-purpose machining applications

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 0.5-inch boring bar holders used in CNC turning centers and manual lathes requiring left-hand cut internal boring tools.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully within the boring bar holder to the recommended clamping depth before operation. Confirm spindle direction and cutting orientation match left-hand cut requirements before engaging the workpiece. Always follow machine guarding and chip control procedures appropriate to the material being bored.