Hertel H59868133 Indexable Boring Bar 0.285 in Right Hand

Product Description

The HERTEL H59868133 is a steel indexable boring bar designed for precision internal turning and boring operations on CNC lathes and manual turning centers. Built to the HBBC toolholder style, it accepts CD-style inserts secured by a screw clamp, providing repeatable insert positioning and reliable cutting performance. The minimum bore diameter is 0.285 inches with a 1/4 inch shank diameter and a 3 inch overall length. Coolant-through capability helps manage chip evacuation and extend insert life in deep-bore applications. This tool is intended for machinists and tool-and-die professionals working with tight-tolerance bore geometries.

This boring bar is suited for small-diameter internal bore work in production and job-shop environments. The right-hand cut orientation makes it compatible with standard lathe spindle rotation. With a maximum bore depth of 1 inch and a compact shank size, it is well matched to light-duty boring passes on ferrous and non-ferrous workpieces. Typical applications include finishing bores on turned components where insert changeability and consistent tool geometry are required.

Key Features

• Minimum bore diameter: 0.285 inches for small-bore internal turning
• HBBC toolholder style with screw-clamp insert retention for positive holding
• Accepts CD-style indexable inserts for quick changeover
• Coolant-through design supports chip control and heat management
• Right-hand cut orientation for standard lathe setup
• Steel construction for rigidity in light to medium boring passes

Compatibility

Designed for use with CD-style indexable inserts. Verify insert geometry and grade selection against workpiece material and cutting parameters before use.

Installation Notes

Installation is performed by qualified machinists following standard toolholder setup procedures. Secure the 1/4 inch shank firmly in the tool post or boring bar holder and verify overhang does not exceed recommended limits for the bore depth. Confirm insert seating and screw torque per the insert manufacturer guidelines before initiating a cut. Always bring the machine to a complete stop before indexing or replacing inserts.