Accupro MB025100 Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO MB025100 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning equipment. Built from submicron-grade carbide with a bright finish coating, this bar delivers consistent dimensional accuracy in tight-tolerance bores. It accepts a minimum bore diameter of 0.025 inches and reaches a maximum bore depth of 0.1 inches, making it well suited for small-diameter finish boring where rigidity and edge retention are critical. The right-hand cutting direction and 0.125-inch shank diameter suit standard quick-change and collet-style toolholding systems. Machinists and tool-and-die professionals specify this bar for fine-bore work in ferrous and non-ferrous materials.

This boring bar fits small-bore turning applications in production machining, toolroom, and job-shop environments. Its compact 1.5-inch overall length makes it practical for short-reach setups on gang-tool lathes, Swiss-style machines, and conventional engine lathes equipped with appropriate boring bar holders. Typical materials bored include aluminum alloys, brass, mild steel, and stainless steel where submicron carbide grain structure provides the edge stability needed for repeatable finish cuts.

Key Features

• Submicron-grade solid carbide construction for extended edge life in precision boring
• Minimum bore diameter of 0.025 inches suits very small internal features
• Maximum bore depth of 0.1 inches for controlled short-reach operations
• Right-hand cutting direction compatible with standard lathe rotation
• Bright finish coating reduces built-up edge on non-ferrous and light ferrous cuts
• 0.125-inch shank diameter fits common collet and quick-change boring bar holders

Compatibility

Designed as a direct-fit replacement or toolroom addition for setups requiring a 0.125-inch shank boring bar with right-hand cut geometry; confirm toolholder bore and clamping range before installation.

Installation Notes

Installation is performed by qualified machinists familiar with turning center toolholding systems. Power down or engage an E-stop on the machine and confirm spindle lock before inserting or removing the boring bar. Ensure the shank is clean and the toolholder bore is free of chips before clamping to maintain concentricity. Follow machine-tool manufacturer torque specifications for the clamping screws on the boring bar holder.