Accupro ACC-BBL3201250 Boring Bar Left Hand Carbide

Product Description

The ACCUPRO ACC-BBL3201250 is a left-hand-cut boring bar machined from submicron solid carbide. It is designed for internal boring operations on lathes and turning centers where precise bore diameter control is required. With a minimum bore diameter of 0.32 inches and a maximum bore depth of 1.25 inches, this bar handles close-tolerance finish boring in ferrous and non-ferrous materials. The 0.375-inch shank diameter and 2.5-inch overall length make it well suited for compact tooling setups. A bright finish coating is applied to the carbide body. Machinists and tool-and-die professionals select this bar for applications demanding rigidity and dimensional accuracy in small-bore work.

This boring bar is intended for use in CNC and manual turning applications requiring left-hand cutting direction. It is applicable to precision boring of holes in workpieces where right-hand bars cannot reach or are geometrically restricted. The submicron carbide grade provides the edge retention needed for fine finishing passes. Typical installation environments include production machine shops, tool rooms, and maintenance machining operations. The bar is sold individually, making it practical for both single-operation setups and multi-bar tooling builds.

Key Features

• Left-hand cutting direction for applications where standard right-hand bars are not viable
• Submicron solid carbide construction for superior edge retention and rigidity
• Minimum bore diameter of 0.32 inches supports small-bore precision work
• Maximum bore depth of 1.25 inches suits a broad range of workpiece configurations
• Bright finish coating on carbide body
• 3/8-inch shank diameter with 2.5-inch overall length for compact tooling setups

Compatibility

Designed as an OEM-style replacement or direct tooling addition for standard boring bar holders accepting a 3/8-inch round shank in CNC and manual turning centers.

Installation Notes

Installation is performed by qualified machinists. The boring bar must be secured in a compatible boring bar holder or turret block sized for a 3/8-inch shank before spindle operation begins. Confirm that the tool overhang does not exceed the manufacturer-recommended length-to-diameter ratio to minimize chatter. Always bring the machine to a full stop and engage the e-stop before changing or adjusting tooling.