Kennametal 2503998 Dvjn Turning Toolholder 1x1 Shank

Product Description

The KENNAMETAL 2503998 is a right-hand DVJN-style indexable turning toolholder built for negative-rake external turning operations. It carries a -9 degree rake angle and accepts VN..33. series inserts secured by a Kenclamp clamping system. The shank measures 1 inch wide by 1 inch tall with an overall length of 6 inches. Head length is 1.44 inches and the back-of-bar to cutting edge distance is 1.25 inches. The tool body is steel construction. Licensed machinists and CNC turning specialists install this holder on engine lathes and CNC turning centers where controlled negative rake geometry is required for hard or interrupted cuts.

This toolholder is suited for external turning applications on manual and CNC lathes in production machining environments. The DVJN style is a common choice for general-purpose turning where a 3-degree lead angle and negative-rake insert geometry are appropriate for the workpiece material and operation. It is not a multi-use or through-coolant tool, making it best suited for dry or flood-coolant setups where internal coolant delivery is not required. The 3/8-inch insert inscribed circle (0.375 inches) accommodates the VN..332 insert form.

Key Features

• Right-hand DVJN toolholder style with -9 degree negative rake angle
• Kenclamp insert holding method for secure, repeatable insert indexing
• 1 inch x 1 inch shank cross-section, 6 inches overall length
• Accepts VN..332 series inserts with 3/8-inch inscribed circle
• Steel tool body for rigidity in demanding turning applications
• 3-degree lead angle geometry for general-purpose external turning

Compatibility

Designed to accept VN..332 series inserts as specified by the manufacturer. Verify insert seat geometry and clamping hardware before substituting insert grades or geometries.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing or seating the toolholder in the turret or tool post. Ensure the shank bore and mating surfaces are clean and free of chips before clamping. Follow machine tool manufacturer torque guidelines for turret clamping bolts and inspect insert seating and clamping screw condition before resuming cuts.