Accupro MB045100 Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO MB045100 is a solid carbide boring bar designed for precision internal boring operations on small-diameter features. Built from submicron-grade carbide with a bright finish, this bar delivers the rigidity and edge retention needed for tight-tolerance work in ferrous and non-ferrous materials. It has a minimum bore diameter of 0.045 inches and a maximum bore depth of 0.1 inches, making it well suited for micro-bore applications where standard tooling cannot reach. The 1/8-inch shank diameter keeps the setup compact, and the 1-1/2-inch overall length fits most small-bore tool holders and CNC turret positions.

This boring bar is intended for use in CNC turning centers, manual lathes, and mill-turn machines where close-tolerance internal diameters are required. It is a right-hand cut tool, positioned for standard forward-feed boring passes. Typical applications include finish boring of small hydraulic ports, bearing bores, and precision-fit housings in production machining environments. Machinists and tooling specialists working in job shops or production facilities will find this bar appropriate for high-precision, short-depth bores.

Key Features

• Submicron solid carbide construction provides high rigidity and wear resistance
• Bright finish coating reduces built-up edge in non-ferrous and light ferrous cuts
• Minimum bore diameter of 0.045 inches enables micro-bore capability
• Maximum bore depth of 0.1 inches suits shallow, close-tolerance internal features
• Right-hand cut geometry for standard forward-feed boring operations
• 1/8-inch shank diameter fits compact tool holders and small-bore turret positions

Compatibility

Designed as an OEM-style replacement or direct tooling selection for 1/8-inch shank boring bar holders used in small-bore turning and mill-turn applications.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the tool holding system is locked out before changing or seating the boring bar. Set shank overhang to the minimum length needed for the bore depth to maximize rigidity and minimize deflection. Confirm tool holder bore diameter and clamping style are compatible with a 1/8-inch round shank before mounting.