Kennametal 1094745 Indexable Boring Bar 3/8 in Shank Steel

Product Description

The KENNAMETAL 1094745 is a steel indexable boring bar designed for internal turning and boring operations on CNC lathes and manual turning centers. Built to the A-STLP toolholder style, it features a 3/8 inch shank diameter, a 6 inch overall length, and a minimum bore diameter of 0.4800 inches (12.19 mm). The screw-clamping insert holding method provides secure TP-style insert retention during interrupted and continuous cuts. The neutral rake angle and -5 degree lead angle make this bar suitable for a range of ferrous and non-ferrous bore finishing applications. It is installed by machinists and toolroom technicians working in precision machining environments.

This boring bar is suited for small-diameter internal boring operations where bore access is limited. The 0.4800 inch minimum bore diameter allows entry into tight bores common in hydraulic components, valve bodies, and precision-machined housings. The coolant-through design supports chip evacuation and tool life in through-coolant-capable spindles. Right-hand cut orientation is standard for conventional lathe setups with forward spindle rotation.

Key Features

• A-STLP toolholder style with screw clamp insert retention for positive TP-style insert lockdown
• Coolant-through design with a 0.1250 inch coolant hole diameter for improved chip flushing and thermal management
• Minimum bore diameter of 0.4800 inches (12.19 mm) for access to small internal features
• Neutral rake (0 degrees) with -5 degree lead angle for versatile material engagement
• 3/8 inch shank diameter and 6 inch overall length for standard boring bar holders and turrets
• Center to cutting edge of 0.2500 inches for predictable tool positioning

Compatibility

Designed for use with TP-style indexable inserts with a 1/4 inch inscribed circle and 3/32 inch insert thickness. Fits standard 3/8 inch boring bar holders and turret blocks on CNC and manual lathes equipped for right-hand cut tooling.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before mounting or changing inserts. Seat the shank fully in the boring bar holder and torque the clamping screws to the holder manufacturer's specification. Verify insert seating and screw engagement before resuming cutting operations. For coolant-through use, confirm alignment of the coolant passage with the machine spindle coolant port.