Kennametal 1875136 Ddjn Turning Toolholder 1x1 Shank

Product Description

The KENNAMETAL 1875136 is a right-hand DDJN-style negative rake indexable turning toolholder designed for external turning operations on CNC lathes and manual turning centers. Built on the Kenclamp clamping platform, it accepts DN..43. series inserts and holds them securely via a top-clamp mechanism. The shank measures 1 inch wide by 1 inch tall, with an overall length of 6 inches and a head length of 1.25 inches. The 3-degree lead angle positions the insert for efficient cutting on standard OD turning passes. Constructed from steel, this toolholder delivers the rigidity required for productive metal removal with negative-rake insert geometries. Licensed HVAC techs and plumbers are not the audience here — this part is specified and installed by machinists, CNC programmers, and tool-crib managers in metal-cutting production environments.

This toolholder is suited for right-hand OD turning applications in both production and job-shop environments. The DDJN style accommodates DN..43. inserts with a 0.5-inch inscribed circle, making it compatible with a common family of negative-rake diamond inserts used in general-purpose steel and cast-iron turning. It is not configured for coolant-through delivery, so external coolant supply or flood coolant at the turret is the expected setup. Typical applications include facing, straight turning, and shoulder work where the 3-degree lead angle provides adequate chip clearance.

Key Features

• DDJN toolholder style with right-hand cutting orientation
• Negative rake geometry for use with standard DN..43. series inserts
• Clamp-style insert retention for secure holding under interrupted or heavy cuts
• 1 x 1 inch square shank fits standard OD turning turret stations
• 6-inch overall length with 1.25-inch head length for reach flexibility
• Steel construction for rigidity and resistance to deflection

Compatibility

Accepts DN..43. series indexable inserts with a 0.5-inch (1/2 inch) inscribed circle. Complete insert compatibility reference: DN.. 432. No additional compatible model or system data was provided in the product input.

Installation Notes

Installation is performed by a machinist or CNC tool-crib technician. The machine spindle must be stopped and the turret fully de-energized before seating or changing the toolholder. Torque the turret clamping bolts to the machine manufacturer specification — do not use values from this listing. Verify insert seating and clamp engagement before resuming cutting operations, and confirm tool offset entry in the CNC control matches the head length and cutting-edge position.