Kennametal 1097261 Threading Toolholder Left Hand 0.75 in

Product Description

The KENNAMETAL 1097261 is an indexable threading toolholder designed for both internal and external threading and grooving operations on metal-cutting lathes and turning centers. Built in the Top Notch series, this left-hand toolholder accepts an N.3L insert held by a clamp-style insert holding method. The shank measures 0.75 x 0.75 inches square, with an overall length of 4 inches and a head length of 1.25 inches. Maximum depth of cut is 0.21 inches. It is a multi-use tool suitable for combined threading and grooving applications, making it a practical choice for production and job-shop turning environments.

This toolholder is intended for use in turning centers and manual lathes where left-hand threading or grooving passes are required. Its 0.75-inch square shank fits standard tool blocks and quick-change toolpost holders sized for that shank dimension. The Top Notch series is commonly applied in threading operations requiring precise, repeatable insert indexing. Machinists and CNC lathe operators working on external thread profiles or internal bore threading will find this holder suited to that workflow. Coolant-through capability is not included in this configuration.

Key Features

• Handles both internal and external threading and grooving in a single toolholder
• Left-hand orientation for applications requiring reverse-direction cutting passes
• Clamp-style insert holding method secures the N.3L insert for repeatable indexing
• 0.75 x 0.75 inch square shank fits standard lathe tool blocks
• Maximum depth of cut of 0.21 inches suits a wide range of thread profiles
• Top Notch series design for consistent insert seating and tool life

Compatibility

Designed to accept N.3L Top Notch series inserts. Compatible with tool blocks and quick-change systems accommodating a 0.75-inch square shank. Suitable for threading and grooving applications on metal-cutting lathes and CNC turning centers.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be stopped and all motion arrested before mounting or adjusting the toolholder in the turret or tool block. Verify shank seating and insert clamp torque per the machine tool and insert manufacturer guidelines before initiating a cutting pass. Confirm left-hand orientation matches the intended direction of cut before programming or running the operation.