Kennametal 2408524 Indexable Boring Bar 2.4in Right Hand

Product Description

The KENNAMETAL 2408524 is a right-hand indexable boring bar designed for internal turning and boring operations on machining centers and lathes. Built to the A-DCLN-KC toolholder style, it accepts CN..543 series inserts with a 5/8-inch inscribed circle and 1/4-inch insert thickness. The bar features a 2-inch shank diameter and a 16-inch overall length, providing the reach needed for deep-bore applications. Through-coolant capability is included via a 1/4-18 NPT coolant hole, keeping the cutting zone clear and extending insert life. The negative rake geometry at a 5-degree rake angle and -5-degree lead angle suits interrupted and continuous cuts in a range of workpiece materials. Machinists and toolroom professionals install this bar in production and job-shop environments.

This boring bar is suited for medium-to-large diameter bores starting at a 2.4-inch minimum bore diameter. It is used in CNC lathe and machining center setups where precise internal diameter control is required. The Kenclamp insert holding method provides secure clamping and repeatable insert indexing, making it appropriate for production runs and finish boring passes alike. The 1.281-inch center-to-cutting-edge dimension factors into offset and boring head setup calculations.

Key Features

• Minimum bore diameter of 2.4 inches supports medium-to-large bore applications
• 16-inch overall length provides extended reach for deep-bore setups
• Through-coolant via 1/4-18 NPT port directs coolant directly to the cutting edge
• Kenclamp insert holding method ensures secure, repeatable CN..543 insert indexing
• Negative rake angle with -5-degree lead angle suited for stable cutting in steel and similar materials
• Steel tool body construction for rigidity and vibration resistance

Compatibility

Designed to accept CN..543 series inserts with a 5/8-inch inscribed circle and 1/4-inch thickness, using the Kenclamp holding method. Compatible with right-hand A-DCLN-KC toolholder configurations.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for boring bar setup and clamping torque. Power down and lock out the machine spindle before changing inserts or adjusting the boring bar in the holder. Verify shank-to-holder fit and confirm coolant line connection to the 1/4-18 NPT port before resuming operation. Never exceed the machine spindle speed and feed recommendations for the insert grade and workpiece material in use.