Tungaloy 6853108 Indexable Turning Toolholder ADJNR-164A

Product Description

The TUNGALOY 6853108 is an indexable turning toolholder in the ADJNR-164A style, designed for external turning operations on CNC lathes and manual turning centers. It features a 93-degree lead angle and a right-hand cutting direction, making it suited for longitudinal turning and facing passes where a near-perpendicular approach angle is required. The shank measures 1 inch wide by 1 inch tall, with an overall length of 5.91 inches and a head length of 1.42 inches. Installation is performed by machinists and CNC setup technicians as part of routine tooling changes or new job setups.

This toolholder is intended for turning applications in production and job-shop environments. The ADJN-style pocket accepts standard ADJN-compatible negative-rake inserts. Its 1x1 inch square shank fits a wide range of tool posts and turret stations sized for that cross-section. The 93-degree lead angle provides a slight back-cutting geometry that helps reduce radial cutting forces and can improve surface finish on straight turning passes. The back of bar to cutting edge dimension is 100 millimeters.

Key Features

• ADJNR-164A toolholder style with 93-degree lead angle for near-perpendicular turning geometry
• Right-hand cutting direction for standard longitudinal and facing operations
• 1 inch by 1 inch square shank for broad compatibility with standard tool posts and turret stations
• Overall length of 5.91 inches with a head length of 1.42 inches
• Back of bar to cutting edge: 100 millimeters
• Single-use toolholder design dedicated to turning applications

Compatibility

Designed for use with ADJN-style indexable inserts in tool posts and CNC turret stations that accept a 1 inch by 1 inch square shank, used in external turning applications.

Installation Notes

This toolholder is installed and set up by machinists or CNC tooling technicians. Before changing or seating the toolholder, power down the machine and confirm all axes are at a safe home position. Ensure the turret station or tool post bore and clamping surfaces are clean and free of chips before seating the shank. Use calibrated torque tooling per the machine manufacturer's clamping specifications when securing the holder, and verify tool height and offset with a test cut before running production.