Kennametal 1094692 Indexable Boring Bar Left Hand Steel

Product Description

The KENNAMETAL 1094692 is a steel indexable boring bar designed for internal turning and boring operations on CNC lathes and manual turning centers. It features a left-hand cut orientation with a neutral rake angle of 0 degrees and a -5 degree lead angle. The 1/2-inch (12.70 mm) round shank accepts DP-style inserts secured by a screw-clamp holding method. Minimum bore diameter is 0.73 inches (18.54 mm), making it suitable for small-to-medium diameter bores. The tool includes a 1/16-27 NPT coolant-through port for direct cutting fluid delivery at the insert tip, supporting higher surface speeds and extended insert life.

This boring bar is intended for use in precision machining environments where left-hand boring operations are required. It fits standard boring bar holders with a 1/2-inch shank bore. The 8-inch overall length provides adequate reach for moderate-depth bores while maintaining rigidity. Typical applications include finish and semi-finish boring of steel, cast iron, and similar materials in job shop and production turning operations. The tool is installed and used by machinists, toolroom technicians, and CNC operators working on turning equipment.

Key Features

• Left-hand cut orientation with -5 degree lead angle for specific approach and chip direction control
• Screw-clamp insert holding method for secure, repeatable insert indexing
• Coolant-through design with 1/16-27 NPT port for direct coolant delivery at the cutting zone
• Neutral rake (0 degrees) accommodates a wide range of workpiece materials
• 1/4-inch inscribed circle DP-style insert compatibility with 3/32-inch insert thickness
• Steel shank construction for use in standard boring bar holders

Compatibility

Designed for use with DP-style inserts with a 1/4-inch inscribed circle and 3/32-inch thickness. Fits 1/2-inch bore toolholders and standard indexable boring bar blocks accepting that shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician following the machine tool manufacturer's tooling setup procedures. Ensure the machine spindle is fully stopped and the machine is placed in a safe, locked-out state before changing or indexing inserts. Torque the insert clamping screw to the insert manufacturer's specification using the appropriate Torx or hex key. When connecting coolant-through supply, verify thread compatibility with the 1/16-27 NPT port before applying any fittings.