Kennametal 1016456 Indexable Boring Bar 1 in Shank Rh

Product Description

The KENNAMETAL 1016456 is a Kenloc-series indexable boring bar designed for internal turning and boring operations on CNC lathes and manual turning centers. Built from steel, this right-hand holder accepts CN-style inserts secured by screw or clamp clamping, delivering a negative 5-degree rake angle suited for stable, controlled metal removal. The shank measures 1 inch in diameter with an overall length of 12 inches, and minimum bore diameter capability of 1.2 inches (30.48 mm). Coolant-through capability via a 1/4-18 NPT coolant hole thread supports chip evacuation and tool life in demanding cuts. Licensed machinists and CNC operators specify this bar for precision bore finishing and roughing where insert rigidity and repeatability are required.

This boring bar fits standard machine tool turrets and boring bar holders accepting a 1-inch round shank. It is appropriate for steel, cast iron, and similar workpiece materials where CN-style inserts — with a 1/2-inch inscribed circle and 3/16-inch thickness — are preferred. The Kenloc clamping system is a recognized platform in production turning environments, including job shops and high-volume manufacturing cells running medium to large bore diameters starting at 1.2 inches.

Key Features

• Kenloc-series A-MCLN toolholder style for rigid, repeatable insert seating
• Right-hand cut orientation for standard OD and ID turning setups
• Screw and clamp insert holding for secure CN-style insert retention
• Coolant-through design with 1/4-18 NPT threaded coolant port
• Negative rake geometry for strength and edge stability on harder workpiece materials
• Steel construction provides durability across continuous and interrupted cuts

Compatibility

Designed for use with CN.. (CN-style) indexable inserts with a 1/2-inch inscribed circle and 3/16-inch insert thickness, per the Kenloc insert system specifications provided.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the machine powered down and the turret locked before mounting or removing the boring bar. Secure the 1-inch shank in the toolholder to the machine manufacturer's specified clamping requirements. Verify coolant-through connections are properly fitted and free of leaks before resuming spindle operation. Always follow applicable shop safety procedures and machine tool manufacturer guidelines when changing tooling.