Accupro ACC-BBL4903500 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL4903500 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and machining centers. Built from submicron-grade carbide with a bright finish coating, it delivers consistent cutting performance in tight-tolerance bore applications. The bar features a 0.5 inch shank diameter and a 6 inch overall length, with a minimum bore diameter of 0.49 inches and a maximum bore depth of 3.5 inches. The left-hand cutting direction makes it suited for specific spindle orientations and reverse-boring setups. Machinists and tooling specialists specify this bar for applications where rigidity and surface finish matter.

This boring bar is used in metal-cutting environments requiring precise bore geometry in ferrous and non-ferrous materials. Its submicron carbide grade supports higher cutting speeds and improved tool life compared to standard carbide grades. Typical applications include finishing bores, sizing operations, and back-boring on manual or CNC turning equipment. The bright finish keeps the surface consistent and aids in chip flow during operation.

Key Features

• Submicron solid carbide construction for improved rigidity and tool life
• Left-hand cut orientation for reverse-boring and specific spindle setups
• Minimum bore diameter of 0.49 inches for small-bore applications
• Maximum bore depth of 3.5 inches for deep-reach operations
• 0.5 inch shank diameter for standard toolholder compatibility
• Bright finish coating aids chip evacuation and surface consistency

Compatibility

Designed as an OEM-style replacement and direct-fit boring bar for standard 0.5 inch shank boring bar holders used in CNC lathe and turning center tooling systems.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank firmly in a compatible 0.5 inch boring bar holder and verify runout before taking a cut. Ensure the machine spindle is fully stopped and the control is in a safe state before mounting or removing the bar. Follow shop-floor tooling procedures and machine manufacturer guidelines for boring bar setup and overhang limits.