Kennametal 1097563 Threading Toolholder 1-1/4 Inch Shank

Product Description

The KENNAMETAL 1097563 is an indexable threading toolholder in the Top Notch series, designed for both internal and external threading operations on CNC lathes and manual turning centers. It features a right-hand orientation and accepts N.3L inserts secured by a clamp-style holding method. The square shank measures 1.25 inches wide by 1.25 inches tall, with an overall length of 6 inches and a head length of 0.75 inches. With a maximum depth of cut of 0.21 inches and a back-of-bar to cutting edge dimension of 1.5 inches, this holder is built for precision threading work in metal-cutting environments. It does not support coolant-through delivery.

This toolholder is suited for production and job-shop turning applications where repeatable thread profiles are required. The Top Notch series design supports quick insert indexing, making it a practical choice for machinists running high-mix threading operations on steel, cast iron, and similar materials. Its rigid square shank profile is compatible with standard lathe tool blocks and quick-change toolpost systems commonly found in both production shops and toolrooms.

Key Features

• Accepts N.3L threading inserts held by a clamp-style insert retention system
• Right-hand holder orientation for standard turning setups
• Handles both internal and external threading operations from a single holder style
• 1.25-inch square shank for rigid, low-vibration mounting
• Maximum depth of cut: 0.21 inches
• Overall length of 6 inches with a 0.75-inch head length
• Part of the KENNAMETAL Top Notch series for consistent insert indexing

Compatibility

Compatible with N.3L series Top Notch indexable threading inserts. Designed as a direct-fit toolholder for standard square-shank lathe tool blocks accepting a 1.25-inch shank. No coolant-through inserts or adapters are supported with this holder.

Installation Notes

Installation is typically performed by a machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing the toolholder or indexing inserts. Secure the shank fully in the tool block to the manufacturer-specified engagement depth to prevent chatter during threading passes. Verify insert seating and clamp torque with the insert manufacturer's guidelines before taking the first threading pass.