Hertel H59868364 Indexable Boring Bar 0.208 in Right Hand

Product Description

The HERTEL H59868364 is a solid carbide indexable boring bar designed for internal turning and boring operations on metal cutting machines. Built to the HBBC toolholder style, it accepts CD-type inserts secured by a screw clamping method, providing repeatable insert seating and consistent cutting geometry. With a minimum bore diameter of 0.208 inches and a maximum bore depth of 1.875 inches, this bar suits tight-tolerance bore finishing and semi-finishing work. Coolant-through capability helps flush chips and reduce heat at the cutting zone. The 3/16-inch shank diameter and 4-inch overall length make it compatible with small-bore applications where rigidity and reach must be balanced.

This boring bar is intended for use on CNC lathes, machining centers, and manual turning equipment where small-diameter internal bores require precise, repeatable cuts. It is suited for job shops, production machining environments, and tool rooms handling close-tolerance work in ferrous and non-ferrous materials. The right-hand cut orientation is standard for conventional lathe setups. Machinists and CNC programmers specifying tooling for small-bore finishing applications will find the solid carbide construction appropriate for demanding tolerances.

Key Features

• Solid carbide construction provides stiffness and vibration resistance in small-diameter bores
• Minimum bore diameter of 0.208 inches enables machining of tight internal features
• Maximum bore depth of 1.875 inches supports reach into deeper bore profiles
• Coolant-through design directs fluid to the cutting edge for chip evacuation and thermal management
• Screw-clamp insert holding method ensures secure, repeatable CD-type insert indexing
• Right-hand cut orientation for standard lathe and turning center setups

Compatibility

Accepts CD-type indexable inserts secured by screw clamping. Designed for use in tool holders and boring head setups accommodating a 3/16-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's tooling setup procedures. Ensure the machine spindle is fully stopped and the machine is in a safe, locked-out state before mounting or removing the boring bar. Set the shank securely in the tool block or boring head to the recommended minimum clamping depth to prevent deflection. Verify insert seating and screw torque per the insert manufacturer's specifications before beginning a cut.