Kennametal 1097240 Threading Toolholder 1.25 in Shank

Product Description

The KENNAMETAL 1097240 is a Left Hand indexable threading toolholder from the Top Notch series, designed for both internal and external threading and grooving operations on CNC lathes and turning centers. The holder features a 1.25 x 1.25 inch square shank and an overall length of 6 inches, making it a rigid, machine-ready solution for precision thread cutting. It accepts N.4R inserts secured by a clamp-style holding method, providing repeatable insert positioning across high-volume production runs. Machinists and CNC toolroom technicians are the primary installers of this toolholder.

This toolholder is suited for threading and grooving applications in metalworking environments, including job shops, production turning cells, and maintenance machining operations. It handles both internal and external thread profiles from a single holder setup, reducing tool changes and setup time. With a maximum depth of cut of 0.294 inches and a head length of 0.75 inches, the 1097240 fits typical turning center tool turrets where square-shank tooling is specified. It is a multi-use tool appropriate for a range of ferrous and non-ferrous workpiece materials.

Key Features

• Handles both internal and external threading and grooving from a single holder
• Left Hand orientation for use on machines and setups requiring LH tooling
• 1.25 x 1.25 inch square shank for rigid, low-deflection mounting
• Clamp-style insert holding for secure, repeatable N.4R insert indexing
• Maximum depth of cut of 0.294 inches suits standard threading pass depths
• Top Notch series tooling designed for consistent insert-to-holder fit

Compatibility

Designed for use with N.4R series indexable threading inserts in standard square-shank tool turret positions requiring a 1.25 x 1.25 inch Left Hand toolholder. Specific machine model compatibility should be confirmed against turret block specifications prior to ordering.

Installation Notes

Installation is performed by a qualified machinist or CNC toolroom technician. Always index the machine spindle to a safe position and engage the machine lockout before seating or removing the toolholder from the turret. Verify insert orientation and seating before resuming cutting operations. Do not exceed the maximum depth of cut specified for the insert grade in use.