Kennametal 1328592 Indexable Boring Bar 1 in Shank Steel

Product Description

The KENNAMETAL 1328592 is a steel indexable boring bar designed for internal turning and boring operations on CNC lathes and turning centers. Built to the A-SCLC toolholder style, it accepts CC-type inserts secured by a screw-lock clamping method. The bar features a 1-inch shank diameter, a minimum bore diameter of 1.200 inches (30.48 mm), and a 12-inch overall length. Coolant-through capability is included via a 1/4-18 NPT threaded port, supporting chip evacuation and insert life in deep-bore applications. The neutral rake geometry and -5-degree lead angle suit a range of ferrous and non-ferrous boring passes.

This boring bar is suited for job shops, production machining environments, and tool rooms where consistent, repeatable internal boring is required. It is typically installed in static or live-tool turrets on CNC turning centers. The right-hand cut orientation makes it a standard fit for conventional lathe setups where the spindle rotates counterclockwise when viewed from the tailstock. Applications include finish and semi-finish boring of housings, flanges, cylinders, and similar workpieces requiring controlled bore diameters.

Key Features

• A-SCLC toolholder style with screw-lock insert retention for secure, repeatable positioning
• Accepts CC-type inserts with 3/8-inch inscribed circle and 5/32-inch insert thickness
• Coolant-through design with 1/4-18 NPT port for directed coolant delivery at the cutting edge
• 1-inch steel shank with 12-inch overall length for reach into deep bore applications
• Neutral rake angle (0 degrees) and -5-degree lead angle for controlled cutting action
• Right-hand cut orientation for standard CNC lathe turret mounting

Compatibility

Compatible with CC-type indexable inserts with a 3/8-inch inscribed circle and 5/32-inch thickness. Designed for use in standard 1-inch boring bar holders on CNC turning centers and manual lathes equipped to accept A-SCLC style toolholders.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the turret is locked out before mounting or removing the bar. Secure the shank in a properly sized boring bar holder to the tool manufacturer's clamping specifications. Verify insert seating and screw torque before resuming cutting operations; a loose insert under load is a safety hazard.