Hertel H59870477 Indexable Boring Bar 0.731 in Right Hand

Product Description

The HERTEL H59870477 is a steel indexable boring bar designed for precision internal turning and boring operations on metalworking lathes and machining centers. Built to the HBBS toolholder style, it accepts TD and TP series indexable inserts secured by a screw clamping method. The shank diameter measures 5/8 inches, the overall length is 7 inches, and the minimum bore diameter is 0.731 inches. Maximum bore depth reaches 5 inches. Coolant-through capability supports chip evacuation and tool life in deeper bore applications. Right-hand cut geometry suits standard lathe spindle configurations.

This boring bar is intended for use in machine shop environments handling close-tolerance internal bore work on steel, cast iron, and similar workpiece materials. It is suited for production and job-shop turning operations where repeatable insert indexing is required. The 5/8-inch straight shank fits standard boring bar holders and quick-change toolpost systems commonly found on manual and CNC lathes. A single-piece steel body provides rigidity for bores in the 0.731-inch to approximately 5-inch depth range.

Key Features

• Minimum bore diameter of 0.731 inches for tight internal geometries
• Maximum bore depth of 5 inches for deep-bore capability
• Coolant-through design aids chip removal and extends insert life
• Screw-clamp insert holding method for positive, repeatable seating
• Compatible with TD and TP series indexable inserts
• Right-hand cut configuration for standard lathe spindle direction
• Steel body construction for durability and vibration damping

Compatibility

Accepts TD and TP series indexable inserts. Designed as an OEM-style replacement or direct tooling selection for HBBS-style boring bar holders with a 5/8-inch shank bore.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before mounting or indexing inserts. Secure the shank firmly in the boring bar holder to the recommended clamping torque for the holder manufacturer. Verify insert seating and screw torque before resuming cutting operations.