Hertel H59870568 Indexable Boring Bar 1.355in Bore Steel

Product Description

The HERTEL H59870568 is a steel indexable boring bar designed for precision internal boring operations on lathes and machining centers. Built to toolholder style HBBS, it accepts TD and TP series screw-locked inserts and is suited for right-hand cutting applications. The bar features a 1-1/4 inch shank diameter and an overall length of 12 inches, providing the rigidity needed for deep-bore work. Coolant-through capability supports chip evacuation and tool life in demanding cuts. Machinists and toolroom professionals working in production or job-shop environments rely on this style of boring bar for accurate, repeatable bore sizing.

This boring bar is intended for use in metal-cutting applications where internal diameter finishing or semi-finishing is required. The minimum bore diameter is 1.355 inches, and the maximum bore depth reaches 10 inches, making it suitable for deep-cavity work in steel, cast iron, and similar materials. The screw-clamping insert retention method allows fast insert indexing without disturbing setup. It is a single-application tool with no multi-use designation, ensuring dedicated performance in its rated bore range.

Key Features

• Minimum bore diameter of 1.355 inches with maximum bore depth of 10 inches
• Right-hand cut orientation for standard lathe and machining center setups
• Compatible with TD and TP series indexable inserts, retained by screw clamp
• Coolant-through design aids chip control and extends insert life
• Steel construction provides toughness and vibration resistance in deep-bore applications
• 1-1/4 inch shank diameter for secure toolholder gripping

Compatibility

Designed for use with TD and TP series indexable inserts. Toolholder style HBBS with screw-clamp insert retention. No additional specific machine or model compatibility was provided in the product data.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts or adjusting the bar in its holder. Ensure the shank is fully seated and clamped to the recommended holding depth in the boring head or turret before cutting. Follow the insert manufacturer guidelines for feed and speed selection based on workpiece material.