Kennametal 1094906 Indexable Boring Bar 1/2 in Shank Steel

Product Description

The KENNAMETAL 1094906 is a steel indexable boring bar designed for internal turning and boring operations on lathes and machining centers. Built on the Kendex series A-CTLP toolholder style, it accepts TP-style inserts held by a clamp-style insert holding method. The bar features a 1/2 inch (12.70 mm) shank diameter, a minimum bore diameter of 0.600 inches (15.24 mm), and an overall length of 8 inches (203.20 mm). A coolant-through design with a 1/16-27 NPT coolant hole thread supports chip evacuation and tool life in demanding bore finishing and roughing applications.

This boring bar is suited for precision internal bore work in both production and job-shop environments. The positive rake geometry with a 5-degree rake angle and -5-degree lead angle is configured for right-hand cutting. The 1/4 inch insert inscribed circle and 1/8 inch insert thickness are standard references when sourcing compatible TP-style inserts. Machinists and CNC lathe operators working in steel, cast iron, and similar materials will find this tool appropriate for tight-tolerance bore applications where a 0.600 inch minimum bore entry is acceptable.

Key Features

• Kendex series A-CTLP toolholder style for consistent insert indexing
• Minimum bore diameter of 0.600 inches (15.24 mm) for small-bore internal turning
• Clamp-style insert retention for secure hold during interrupted and continuous cuts
• Coolant-through design with 1/16-27 NPT thread for directed coolant at the cutting zone
• Positive rake geometry (5-degree rake, -5-degree lead angle) reduces cutting forces
• Steel construction for rigidity in standard lathe and machining center setups

Compatibility

Designed to accept TP-style inserts with a 1/4 inch inscribed circle and 1/8 inch thickness. Verify insert geometry and grade selection against the specific workpiece material and cut parameters before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in the boring bar holder and confirm proper shank clamping torque per the machine tool manufacturer specifications before running the spindle. Disconnect power and follow lockout/tagout procedures before mounting or changing inserts or toolholders. Do not exceed the machine spindle speed or depth-of-cut limits recommended for the selected insert grade and workpiece material.