Kennametal 1328578 A-scfc Indexable Boring Bar Right Hand

Product Description

The KENNAMETAL 1328578 is a right-hand A-SCFC indexable boring bar designed for precision internal turning and boring operations on CNC lathes and machining centers. Built from steel with a 3/4-inch (19.05 mm) shank diameter and a 10-inch overall length, it delivers a minimum bore diameter of 0.93 inches (23.62 mm). The screw-clamping insert holding method provides secure, repeatable seating of CC.. style inserts, while the through-coolant design channels fluid directly to the cutting zone to manage heat and chip evacuation during deep-bore applications. The neutral rake geometry at 0 degrees suits a broad range of workpiece materials. This bar is intended for use by machinists and tool-and-die professionals in job shop and production environments.

This boring bar is suited for internal diameter operations where a minimum bore entry of 0.93 inches is required. The through-coolant feature makes it particularly effective in deep-bore or high-feed applications where conventional flood coolant cannot reach the cutting edge efficiently. The 10-inch overall length provides reach for moderate-depth bores while maintaining rigidity. It accepts CC.. indexable inserts with a 3/8-inch inscribed circle and 5/32-inch thickness, allowing quick insert changes without removing the bar from the machine. Typical applications include finish and semi-finish boring of steel, cast iron, and similar materials in both single-piece and short-run production scenarios.

Key Features

• Minimum bore diameter of 0.93 inches (23.62 mm) for tight-bore entry applications
• Through-coolant with 1/8-27 NPT coolant hole thread for direct cutting-zone fluid delivery
• Screw-clamp insert holding method for secure, repeatable CC.. insert indexing
• Neutral rake angle (0 degrees) for versatile material compatibility
• 3/4-inch shank diameter and 10-inch OAL for rigid, reach-capable setup
• Right-hand cutting orientation for standard lathe and boring mill configurations

Compatibility

Designed to accept CC.. style indexable inserts with a 3/8-inch inscribed circle and 5/32-inch insert thickness, used in A-SCFC toolholder configurations.

Installation Notes

Installation should be performed by a qualified machinist with the machine powered down and in a locked-out state before mounting or removing the bar. Ensure the shank is fully seated and clamped in the toolholder or turret to the machine manufacturer's specified holding depth. Connect the through-coolant supply line to the 1/8-27 NPT port before operation and verify flow before engaging the cut. Follow the insert manufacturer's recommended cutting parameters for the specific CC.. insert grade selected.