Kennametal 1094837 Indexable Boring Bar 1-1/4 Inch Shank

Product Description

The KENNAMETAL 1094837 is an indexable boring bar designed for internal turning and boring operations on CNC lathes and manual turning centers. Built to the A-NE toolholder style in the Top Notch series, it accepts N-style inserts secured by a clamp-style holding method for reliable edge retention under interrupted and continuous cuts. The shank diameter is 1.25 inches, the minimum bore diameter is 1.75 inches (44.45 mm), and the overall length is 14 inches (355.60 mm). The center-to-cutting-edge dimension is 0.875 inches. Coolant-through capability is included, with a 1/4-18 NPT coolant hole thread size. The bar is right-hand cut and manufactured from steel for rigidity in demanding bore applications.

This boring bar is suited for production and job-shop environments where repeatable bore geometry is critical. It is a right-hand-cut tool, making it appropriate for conventional lathe rotation on inside-diameter finishing and roughing passes. The 14-inch overall length provides reach for deeper bore applications while the 1.25-inch shank fits standard static and live tooling blocks common on turret lathes and turning centers. Licensed machinists and CNC setup technicians are the primary users. The Top Notch insert platform provides a broad selection of insert geometries and coatings for steel, cast iron, and non-ferrous materials.

Key Features

• Right-hand cut A-NE toolholder style in the Top Notch series
• Minimum bore diameter of 1.75 inches (44.45 mm) for mid-range bore applications
• 14-inch overall length with 1.25-inch steel shank for reach and rigidity
• Clamp-style insert retention for secure N-style insert indexing
• Coolant-through design with 1/4-18 NPT thread for directed coolant delivery to the cutting zone
• Center-to-cutting-edge dimension of 0.875 inches for predictable tool offset setup

Compatibility

Designed for use with N-style indexable inserts in the KENNAMETAL Top Notch series tooling system. Fits standard 1.25-inch boring bar pockets on turret lathes and CNC turning centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the machine in an e-stop or locked-out state per LOTO procedures. Secure the shank in a boring bar holder to the full recommended clamping depth to minimize overhang deflection. Verify insert seating and clamp torque before initiating a cut. Connect coolant supply to the 1/4-18 NPT port using appropriate fittings rated for the machine coolant pressure.