Accupro ACC-BB180500A Boring Bar 0.18in Min Bore Carbide

Product Description

The ACCUPRO ACC-BB180500A is a solid carbide boring bar engineered for precision internal boring operations on CNC lathes and manual turning centers. Built from micrograin solid carbide with a TiAlN finish coating, this bar delivers the hardness and thermal resistance needed for tight-tolerance bores in steel, cast iron, and similar materials. It handles a minimum bore diameter of 0.18 inches and a maximum bore depth of 0.50 inches. With a 0.25-inch shank diameter and an overall length of 2.5 inches, it fits compact toolholders and Swiss-style setups commonly found in production machining environments. Machinists and tool-and-die professionals are the primary installers of this tooling.

This boring bar is suited for small-diameter internal finishing and semi-finishing passes in short-reach applications. The right-hand cutting direction makes it compatible with standard spindle rotation on conventional CNC turning setups. Its compact geometry is well matched to close-tolerance work in watch components, hydraulic fittings, medical parts, and other small-bore precision components. The micrograin carbide substrate supports consistent edge retention across extended production runs, reducing tool change frequency in high-cycle operations.

Key Features

• Micrograin solid carbide substrate for high hardness and edge retention in demanding materials
• TiAlN finish coating improves heat resistance and extends tool life at elevated cutting speeds
• Minimum bore diameter of 0.18 inches enables entry into very small internal features
• Maximum bore depth of 0.50 inches suitable for short-reach internal operations
• Right-hand cutting direction for standard spindle rotation compatibility
• 0.25-inch shank diameter fits common small-bore toolholders and turret blocks

Compatibility

Designed as a direct-fit boring bar for CNC lathes and turning centers accepting a 0.25-inch round shank toolholder with right-hand cutting orientation.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Secure the shank fully in the toolholder to the recommended grip length before engaging any cut, and verify runout with a dial indicator before production use. Always power down and lock out the spindle before changing or adjusting tooling. Follow shop safety protocols and machine manufacturer guidelines when setting tool offsets and depth-of-cut parameters.