Kennametal 1291039 Trao Indexable Turning Toolholder

Product Description

The KENNAMETAL 1291039 is a right-hand TRAO-style indexable turning toolholder designed for precision metal turning operations on CNC lathes and manual turning centers. Built on the K-Lock series platform, this toolholder features a 1.25-inch by 1.25-inch square shank and accepts RC..152 series inserts secured by a clamp-style holding method. The neutral rake geometry with a 0-degree rake angle provides predictable cutting performance across a range of workpiece materials. With an overall length of 6 inches and a maximum depth of cut of 0.5 inches, this toolholder suits production and job-shop turning applications requiring consistent insert indexing and rigid clamping.

This toolholder is suited for external turning operations in production machining environments including job shops, contract manufacturers, and maintenance machine shops. The right-hand configuration is compatible with standard lathe tool post and turret setups where the tool feeds from right to left. The K-Lock series clamping system is intended for operators and machinists who require reliable insert retention and repeatable tool geometry across multiple insert changes. The 0-degree neutral rake makes it adaptable for both roughing and finishing passes depending on insert grade and geometry selection.

Key Features

• TRAO toolholder style with right-hand orientation for standard lathe configurations
• K-Lock series clamp-style insert holding for secure, repeatable RC..152 insert retention
• 1.25-inch by 1.25-inch square shank for rigid setup in compatible tool posts and turrets
• Neutral rake at 0 degrees for versatile cutting performance across materials
• Maximum depth of cut of 0.5 inches with a 6-inch overall length
• Steel construction for durability in production turning environments

Compatibility

Accepts RC..152 series indexable inserts with a 3/16-inch inscribed circle. The back-of-bar to cutting edge dimension measures 1.253 inches. Designed for use with K-Lock series tooling setups on CNC and manual lathes equipped with a 1.25-inch square shank tool post or turret station. Coolant-through is not supported.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the lathe spindle is fully stopped and all machine power is off before mounting or adjusting the toolholder. Secure the shank fully within the tool post or turret pocket to the required engagement depth per machine tool manufacturer specifications. Verify insert seating and clamp torque according to KENNAMETAL K-Lock system guidelines before taking a cut.