Accupro ACC-TBB375 Boring Bar Right Hand Micrograin

Product Description

The ACCUPRO ACC-TBB375 is a solid micrograin carbide boring bar designed for internal diameter turning and boring operations on CNC lathes and manual turning centers. With a minimum bore diameter of 0.463 inches and a maximum bore depth of 3 inches, this right-hand-cut bar handles small-to-mid-range bores with consistent dimensional accuracy. The 3/8-inch shank diameter and 6-inch overall length give machinists a rigid, compact tool suited for tight clearance bores. A bright finish coating leaves the carbide substrate exposed for direct performance. Machinists, toolroom operators, and production turning specialists are the primary users of this tool.

This boring bar is suited for small bore finish and semi-finish turning applications in both job shop and production environments. The micrograin carbide grade provides fine edge retention and reduced chipping risk at the cutting edge, making it a practical choice for steel, cast iron, and non-ferrous materials where bore geometry and surface finish are critical. The right-hand cutting direction is the standard orientation for conventional OD-to-ID boring passes on most turning center setups.

Key Features

• Minimum bore diameter of 0.463 inches enables work in small, tight bores
• Maximum bore depth of 3 inches suits a wide range of workpiece lengths
• Micrograin carbide grade delivers fine edge retention and chipping resistance
• Right-hand cut orientation matches standard lathe boring configurations
• 3/8-inch shank diameter fits common boring bar holders and tool blocks
• Bright finish coating with 6-inch overall length for rigid reach

Compatibility

Designed as a direct-fit replacement or toolroom addition for standard 3/8-inch boring bar holders used on CNC and manual turning centers configured for right-hand internal boring operations.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and lock out the turning center spindle before mounting or removing the boring bar. Secure the shank firmly in the tool holder to the full recommended engagement depth to minimize overhang-related vibration. Confirm tool height on centerline before initiating a cut, as off-center mounting directly affects bore geometry and surface finish quality.