Hertel H59868109 Indexable Boring Bar Right Hand Steel

Product Description

The HERTEL H59868109 is a steel indexable boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built to the HBBC toolholder style, this right-hand-cut bar accepts CD-style inserts secured by a screw clamping method, providing repeatable insert indexing and solid holding power during cuts. With a minimum bore diameter of 0.23 inches and a maximum bore depth of 0.75 inches, it is suited for small-diameter, shallow-bore applications. The 3/16-inch shank diameter and 2.5-inch overall length make this a compact tool intended for close-tolerance work in tight bore geometries. Coolant-through capability supports chip evacuation and tool life in production environments.

This boring bar fits standard small-bore turning applications in job shops, production machining cells, and toolroom environments. The HBBC-S187R5-2.5-230 configuration is sized for workpieces requiring precise internal diameter finishing or roughing at bore diameters starting at 0.23 inches. It is typically used by machinists and CNC operators running steel, aluminum, or similar machinable materials where consistent bore geometry and surface finish are required. The screw-lock insert seat keeps setup time low and allows quick insert changes without removing the bar from the holder.

Key Features

• Right-hand cut orientation for standard lathe boring setups
• Screw clamping method for secure, repeatable CD-style insert indexing
• Coolant-through design supports chip evacuation in deep or finish-bore passes
• Steel construction provides rigidity in small-diameter boring applications
• Compact 2.5-inch overall length suits close-clearance and small-part boring

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

This tool is installed and serviced by machinists and CNC setup technicians. Ensure the machine spindle is fully stopped and the turret or tool post is locked out before changing inserts or adjusting the bar. Use the appropriate Torx or hex key for the insert screw and follow the insert manufacturer's seating procedure. Do not exceed the maximum bore depth of 0.75 inches or the minimum bore diameter entry of 0.23 inches, as either condition can cause insert breakage or bar deflection.