Hertel H08614810 Indexable Boring Bar 0.285 in Left Hand

Product Description

The HERTEL H08614810 is a solid carbide indexable boring bar designed for precision internal turning and boring operations on CNC lathes and machining centers. Built on the HBBG toolholder style, this left-hand-cut bar handles a minimum bore diameter of 0.285 inches and a maximum bore depth of 2.5 inches. The shank measures 0.25 inches in diameter with an overall length of 6 inches. Insert retention is handled by a screw-clamp holding method, providing rigid, repeatable seating. Coolant-through capability supports chip evacuation and tool life in deep-bore applications. Licensed machinists and CNC operators install and use this tooling.

This boring bar is suited for small-bore internal machining where left-hand cutting geometry is required. Typical applications include finishing and semi-finishing of tight-tolerance bores in production turning environments. The coolant-through design makes it particularly effective in materials that generate heat or stringy chips. With a 0.285-inch minimum bore diameter, it is well matched to close-clearance bore work on ferrous and non-ferrous workpieces. The solid carbide body provides rigidity and vibration resistance at extended reach relative to shank diameter.

Key Features

• Left-hand cut geometry for right-to-left boring direction
• Solid carbide body for rigidity and vibration damping in small-bore applications
• Screw-clamp insert holding method for secure, repeatable indexing
• Coolant-through design supports chip evacuation and thermal management
• Compatible with WPGT insert series
• 0.285-inch minimum bore diameter with 2.5-inch maximum bore depth

Compatibility

Designed to accept WPGT series indexable inserts. Verify insert geometry and grade selection against the workpiece material and cutting parameters before use.

Installation Notes

This toolholder is installed by a qualified machinist or CNC setup technician. Always power down and lock out the machine spindle before changing inserts or setting tool offsets. Ensure the shank is clamped securely in the tool turret or boring bar holder to the depth recommended by the machine tool manufacturer. Handle carbide tooling carefully to avoid chipping the shank or cutting edge during setup.