Accupro ACC-HB025125 Helical Boring Bar Solid Carbide

Product Description

The ACCUPRO ACC-HB025125 is a helical boring bar machined from submicron solid carbide for high-precision internal boring operations. It has a minimum bore diameter of 0.025 inches and a maximum bore depth of 0.125 inches, making it well suited for small-diameter finish boring work. The right-hand cutting direction is standard for conventional lathe and machining center setups. The bright finish coating supports chip flow and helps maintain dimensional accuracy in tight bores. At 1.5 inches overall length with a 0.125-inch shank diameter, this bar fits compact toolholding systems and is designed for machinists who need reliable performance in miniature bore applications.

This boring bar is intended for use in CNC machining centers, manual lathes, and precision boring mills where small internal diameters must be held to close tolerances. It is appropriate for production and toolroom environments alike. Typical applications include small hydraulic component bores, instrument housings, medical device components, and other precision parts where a 0.025-inch minimum bore diameter is required. The submicron carbide grade provides the hardness and edge retention needed when cutting ferrous and non-ferrous materials at fine feeds and speeds.

Key Features

• Helical boring bar geometry for improved chip evacuation in small-diameter bores
• Submicron solid carbide construction for superior hardness and edge retention
• Minimum bore diameter of 0.025 inches for precision miniature bore applications
• Right-hand cut direction compatible with standard CNC and manual lathe setups
• Bright finish coating promotes smooth chip flow and dimensional consistency
• Compact 1.5-inch overall length fits restricted toolholding envelopes

Compatibility

Designed as an OEM-style replacement and standard tooling option for precision boring applications requiring a 0.125-inch shank diameter and a minimum bore capability of 0.025 inches.

Installation Notes

This boring bar should be installed by a qualified machinist following the toolholding system manufacturer's clamping procedures. Ensure all machine axes are at a complete stop and the spindle is powered off before changing tooling. Verify shank runout and secure the bar firmly in the holder to the appropriate clamping torque specified by the toolholder manufacturer — do not rely on generic values. Use appropriate cutting speeds and feeds for the workpiece material to avoid edge chipping on this carbide tool.