Kennametal 1097260 Threading Toolholder External Left Hand

Product Description

The KENNAMETAL 1097260 is an external, left-hand indexable threading toolholder in the Top Notch series, designed for precision threading and grooving operations on CNC lathes and turning centers. It accepts N.3L inserts secured by a clamp-style holding method, providing stable, repeatable positioning during interrupted and continuous cuts. The shank measures 1 inch wide by 1 inch tall (25.4 x 25.4 mm) with an overall length of 6 inches (152.4 mm). Rated for a maximum depth of cut of 0.21 inches (5.33 mm), this toolholder suits machinists and toolroom professionals working in production or job-shop environments.

This toolholder is built for external threading and grooving applications on metal lathes and CNC turning equipment. The left-hand orientation positions the cutting edge for specific spindle-direction and part-geometry requirements. The Top Notch series is a widely recognized platform in indexable grooving and threading, making the 1097260 a practical replacement or additional holder for shops already running compatible Top Notch insert inventory. Head length is 1.25 inches (31.75 mm) and the center-to-cutting-edge distance is 0.5 inches, supporting accurate tool-height setup at spindle centerline.

Key Features

• External threading and grooving capability in a single toolholder platform
• Left-hand cutting orientation for reverse-spindle or specific geometry applications
• Clamp-style insert holding for secure, repeatable N.3L insert seating
• 1 inch x 1 inch shank cross-section for compatibility with standard tool-block and turret positions
• Maximum depth of cut of 0.21 inches (5.33 mm) suits a wide range of thread and groove profiles
• Multi-use design rated for both grooving and threading operations

Compatibility

Designed for use with N.3L Top Notch series indexable inserts. Fits standard 1-inch square shank tool stations on CNC lathes and turning centers. No additional compatible model numbers were specified in the product data.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Before mounting or changing inserts, ensure the machine spindle is fully stopped and locked out per your facility lockout/tagout procedure. Secure the shank in the turret or tool block to the tool-block manufacturer's specified clamping procedure, and verify the cutting edge is set at spindle centerline before beginning cuts. Inspect the clamp and insert seat for chips or debris each time an insert is indexed or replaced.