Accupro ACC-BBL080400 Boring Bar Left Hand Solid Carbide

Product Description

The ACCUPRO ACC-BBL080400 is a solid carbide boring bar designed for precision internal boring operations on CNC and manual lathes and machining centers. Manufactured from submicron-grade carbide with a bright finish coating, it delivers tight dimensional control in small-bore applications. The left-hand cutting direction suits specific tooling orientations and back-boring setups. With a minimum bore diameter of 0.08 inches and a maximum bore depth of 0.4 inches, this bar is built for fine, close-tolerance work in hard and abrasive materials. Machinists and tool-and-die professionals working on small-diameter features rely on submicron carbide to maintain edge integrity at tight tolerances.

This boring bar is suited for small-bore finish and semi-finish operations in job shop, production, and tool room environments. The 1/8-inch shank diameter and 1.5-inch overall length make it appropriate for compact toolholders and turret setups where clearance is limited. Left-hand cut geometry is typically selected for reverse-spindle operations, back-boring, or specific machine configurations that require cutting in the opposite direction from a standard right-hand bar. It is intended for use by machinists in metalworking, aerospace, medical device, and precision parts applications.

Key Features

• Submicron solid carbide construction for edge stability in hard and abrasive materials
• Left-hand cutting direction for reverse-spindle and back-boring applications
• Minimum bore diameter of 0.08 inches enables fine small-hole work
• Maximum bore depth of 0.4 inches suits shallow precision features
• Bright finish coating reduces friction and aids chip evacuation
• Compact 1/8-inch shank fits standard small-bore toolholders and turrets

Compatibility

Designed as an OEM-style replacement or direct-use boring bar for standard 1/8-inch shank toolholders used in CNC lathes, manual lathes, and machining centers requiring left-hand cut solid carbide boring tools.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and locked out before mounting or adjusting the boring bar in the toolholder. Secure the shank firmly in a properly sized 1/8-inch bore toolholder to the toolholder manufacturer's recommended clamping procedure. Verify cutting direction and spindle rotation match the left-hand geometry before initiating a cut.