Accupro ACC-BB140500A Boring Bar Micrograin Solid Carbide

Product Description

The ACCUPRO ACC-BB140500A is a micrograin solid carbide boring bar designed for precision internal boring in tight, small-diameter applications. With a minimum bore diameter of 0.14 inches and a maximum bore depth of 0.5 inches, this bar handles small-hole finishing and semi-finishing operations where rigidity and dimensional accuracy matter. The 3/16-inch shank diameter and 2-inch overall length make it well suited for use in CNC lathes, machining centers, and manual toolroom setups. A TiAlN finish coating improves heat resistance and extends tool life in ferrous and hardened materials. Licensed machinists and tool-and-die professionals are the primary installers and operators of this tooling.

This boring bar is intended for right-hand cutting operations in small-bore internal turning. It fits toolholding systems that accept a 3/16-inch round shank. Typical applications include bores in steel, stainless steel, cast iron, and other ferrous alloys where close tolerances and smooth finishes are required. The micrograin carbide substrate provides a fine, uniform grain structure that supports sharp edge retention at small cutting radii. It is a practical choice for short-run production, prototype work, and precision repair machining where bore diameter starts at 0.14 inches.

Key Features

• Minimum bore diameter of 0.14 inches for access to small internal features
• Maximum bore depth of 0.5 inches suitable for shallow precision bores
• Micrograin solid carbide substrate for sharp edge retention and rigidity
• TiAlN coating increases heat resistance and extends tool life in ferrous materials
• Right-hand cutting direction for standard lathe and boring head setups
• Compact 2-inch overall length reduces overhang and vibration tendency

Compatibility

Designed for use with toolholding systems that accept a 3/16-inch round shank boring bar in CNC and manual turning or milling applications requiring a minimum bore diameter of 0.14 inches.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's setup procedures. Ensure the machine spindle is fully stopped and all energy sources are locked out before mounting or removing tooling. Secure the shank fully within the toolholder to the recommended grip length to minimize overhang and vibration. Verify bore diameter and depth clearances against the workpiece drawing before initiating a cut.