Kennametal 1094720 Indexable Boring Bar Left Hand Steel

Product Description

The KENNAMETAL 1094720 is a steel indexable boring bar designed for internal turning and boring operations on CNC lathes and manual turning centers. Built to the A-SVQB toolholder style, this left-hand bar accepts VB-series inserts secured by a screw-clamp holding method. It features a 5/8-inch shank diameter, a 10-inch overall length, and a minimum bore diameter of 0.850 inches (21.59 mm). The neutral rake geometry and -17.5-degree lead angle suit a range of ferrous and non-ferrous materials. A 1/8-27 NPT coolant-through port supports chip evacuation and heat control during deep-bore work. Licensed machinists and CNC operators install this bar in production and job-shop environments.

This boring bar is suited for small-diameter internal boring applications in both production and repair-shop settings. The 0.850-inch minimum bore capability allows work in tight bores where larger tooling cannot reach. The coolant-through design makes it particularly effective in deep-bore or interrupted-cut conditions where heat and chip buildup are concerns. The 1/4-inch insert inscribed circle and 1/8-inch insert thickness correspond to standard VB-series insert sizes stocked by most tooling distributors, reducing sourcing complexity for shops that consolidate insert families.

Key Features

• Left-hand cut orientation for specific lathe setups and back-boring configurations
• Screw-clamp insert holding method for secure, repeatable edge positioning
• Coolant-through port sized at 1/8-27 NPT for directed coolant delivery to the cutting zone
• Neutral rake angle (0 degrees) provides versatile compatibility across workpiece materials
• Steel construction offers a balance of rigidity and machinability for standard boring depths
• Compatible with VB-series inserts with a 1/4-inch inscribed circle and 1/8-inch thickness

Compatibility

Accepts VB-series indexable inserts with a 1/4-inch inscribed circle and 1/8-inch insert thickness. Toolholder style is A-SVQB. No additional specific machine or system compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the machine in a powered-off, locked-out state before tool changes. Confirm shank-to-toolpost or turret bore sizing matches the 5/8-inch shank before seating the bar. Connect the coolant-through port to the machine coolant supply line using fittings appropriate for 1/8-27 NPT threads; verify system pressure is within the machine and toolholder design range before running coolant. Do not exceed the minimum bore diameter specification, as deflection and chatter risk increase significantly below the 0.850-inch bore limit.