Kennametal 1096466 A-mvun Indexable Boring Bar Right Hand

Product Description

The KENNAMETAL 1096466 is a right-hand A-MVUN indexable boring bar designed for precision internal turning and boring operations on CNC lathes and machining centers. Built on the Kenloc toolholder platform, this steel boring bar accepts VN-style inserts secured by screw or clamp and delivers consistent, repeatable results in production environments. With a minimum bore diameter of 43.31 mm (1.705 inches), a 1-1/4-inch shank diameter, and an overall length of 355.6 mm (14 inches), it handles medium-to-large bore work. A built-in through-coolant channel with a 1/4-18 NPT coolant hole thread keeps the cutting zone clear and extends insert life at depth.

This boring bar is suited for shops running ferrous and non-ferrous materials where consistent bore geometry and chip control are critical. The negative rake geometry with a 5-degree rake angle and -3-degree lead angle is appropriate for interrupted cuts and harder workpiece materials. Typical applications include production turning cells, job shops, and aerospace or industrial component manufacturing where tight bore tolerances are required. The through-coolant capability makes it particularly effective for deep boring passes where flood coolant cannot adequately reach the cutting edge.

Key Features

• Right-hand Kenloc-series A-MVUN toolholder style for VN-style insert compatibility
• Through-coolant design with 1/4-18 NPT threaded coolant port for effective chip evacuation at depth
• Negative rake (5 degrees) and -3-degree lead angle optimized for stable, controlled cuts
• 1-1/4-inch (31.75 mm) shank diameter for rigid clamping in standard boring bar holders
• Screw or clamp insert holding method supports quick insert indexing on the floor
• Steel construction provides durability across high-cycle production environments

Compatibility

Accepts VN-style inserts with a 3/8-inch inscribed circle and 3/16-inch insert thickness. Compatible with standard A-MVUN insert grades. Cross-reference manufacturer number A20UMVUNR/L3 when sourcing replacement inserts or verifying system compatibility.

Installation Notes

Installation is performed by qualified machinists or tooling setup technicians. Power down and lock out the machine spindle before mounting or removing the boring bar. Ensure the shank is fully seated and clamped to the specified torque per the machine tool manufacturer's requirements before starting the spindle. Connect the through-coolant supply line to the 1/4-18 NPT port and verify coolant flow before beginning a cut.