Kennametal 1097593 Indexable Threading Toolholder

Product Description

The KENNAMETAL 1097593 is an external, right-hand indexable threading toolholder designed for precision threading and grooving operations on CNC lathes and turning centers. Built in the Top Notch series, it accepts N.4R inserts held by a clamp-style insert holding method, providing secure, repeatable seating under heavy cutting loads. The shank measures 1.25 x 1.25 inches with an overall length of 6.0 inches, making it a rigid, full-square shank toolholder suited to demanding production environments. A maximum depth of cut of 0.294 inches gives machinists meaningful material engagement for external thread and grooving work.

This toolholder is intended for external threading and grooving applications in production machining shops, job shops, and tool rooms running turning centers or manual lathes with appropriate tooling blocks. The Top Notch series design is commonly found in high-volume threading operations where consistent insert indexing and clamping repeatability directly affect thread quality and cycle time. It does not include coolant-through capability, so it is best suited for setups relying on flood or mist coolant delivery from the machine. Machinists and CNC programmers working in metalworking environments are the primary installers and operators of this toolholder.

Key Features

• External right-hand thread and grooving toolholder in the Top Notch series
• Clamp-style insert holding for secure N.4R insert retention during interrupted cuts
• Full-square shank at 1.25 x 1.25 inches for maximum rigidity in the tool block
• 6.0-inch overall length with a 1.38-inch head length for reach and clearance flexibility
• Maximum depth of cut of 0.294 inches suitable for standard external threading passes
• Multi-use design supports both threading and grooving cutting applications

Compatibility

Compatible with N.4R indexable inserts using a clamp-style holding method. Designed for use in the Kennametal Top Notch toolholder system for external threading and grooving on turning centers and lathes accepting a 1.25 x 1.25 inch shank.

Installation Notes

This toolholder is installed by a machinist or CNC setup technician into a lathe turret or tool block rated for a 1.25 x 1.25 inch shank. Power down and lock out the machine spindle before mounting or removing the toolholder. Ensure the tool block mounting surfaces are clean and free of chips before seating the shank, and torque all clamping fasteners to the machine or block manufacturer specifications. Insert indexing and clamping should be verified before returning the machine to production.