Kennametal 1095800 Indexable Boring Bar Left Hand 1-1/4 Shank

Product Description

The KENNAMETAL 1095800 is a left-hand indexable boring bar from the Kenloc series, designed for internal turning and boring operations on CNC lathes and machining centers. Built from steel with a 1-1/4 inch (31.75 mm) shank diameter and 14 inch overall length, this toolholder accepts WN-style inserts secured by screw or clamp holding. The minimum bore diameter is 1.470 inches (37.34 mm), and the negative rake geometry at a -5 degree lead angle delivers stable, controlled cutting action in demanding bore finishing and roughing passes. Coolant-through capability supports chip evacuation and tool life in deep bore applications.

This boring bar is suited for production and job-shop turning operations where consistent bore geometry and rigid toolholding are required. The A-UMWLN toolholder style is a standard configuration used in ferrous and non-ferrous material boring on horizontal and vertical turning centers. The Kenloc clamping system provides repeatable insert indexing, making this bar appropriate for medium to heavy-duty roughing and semi-finishing cuts. It is typically specified by CNC machinists and tooling engineers setting up internal diameter operations on lathes with appropriate boring bar holders.

Key Features

• Left-hand cut orientation for dedicated left-hand boring setups
• 1-1/4 inch shank diameter with 14 inch overall length for extended reach boring
• Minimum bore diameter of 1.470 inches (37.34 mm)
• Accepts WN.. series inserts via screw or clamp holding method
• Coolant-through design with 1/4-18 NPT coolant port for improved chip control
• Negative rake geometry at -5 degree lead angle for stable cutting performance
• Steel construction in the Kenloc series for rigidity and durability

Compatibility

Compatible with WN.. series indexable inserts with a 1/2 inch inscribed circle and 3/16 inch insert thickness. Designed for use in standard boring bar holders accepting a 1-1/4 inch round shank. Specific machine compatibility depends on the toolholder and turret configuration of the host lathe or turning center.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in the boring bar holder to the depth specified by the machine tool manufacturer, ensuring adequate clamping force before operation. Power down and lock out the machine spindle before changing inserts or repositioning the bar. Follow the insert manufacturer torque guidelines for the clamping screw to prevent insert movement or seat damage during cutting.