Kennametal 1875163 Dssn Indexable Turning Toolholder

Product Description

The KENNAMETAL 1875163 is a right-hand DSSN-style indexable turning toolholder designed for negative rake metal cutting operations on the lathe. Built on the Kenclamp clamping system, it accepts SN..43. series inserts with a 0.5-inch inscribed circle and holds them securely via a top clamp mechanism. The shank measures 1 inch wide by 1 inch tall and the overall length is 6 inches, making it a standard fit for most production and job-shop CNC or manual turning centers. The toolholder body is constructed from steel and carries a 45-degree lead angle for controlled chip flow and reduced radial cutting forces during turning operations.

This toolholder is suited for external turning operations in both production and repair-shop environments. The DSSN geometry with negative rake is commonly applied when machining steel, cast iron, and harder materials where insert edge strength is the priority over cutting efficiency. The 45-degree lead angle helps direct cutting forces into the workpiece and the machine spindle rather than the tool post, which reduces chatter in interrupted cuts and roughing passes. Licensed machinists, CNC operators, and tool-and-die tradespeople are the primary users. It is not a multi-use or coolant-through design, keeping setup straightforward for standard flood-coolant or dry-cutting environments.

Key Features

• DSSN toolholder style with 45-degree lead angle for controlled chip direction and reduced radial load
• Right-hand orientation for standard OD turning on conventional and CNC lathes
• Kenclamp top-clamp insert holding method for rigid, repeatable insert seating
• Accepts SN..43. inserts with 0.5-inch inscribed circle
• Steel construction for durability in production turning environments
• No coolant-through passages, simplifying setup for flood or dry cutting applications

Compatibility

Designed to accept SN..43. series indexable inserts with a 0.5-inch (1/2 inch) inscribed circle, per Kennametal complete insert compatibility designation SN.. 432. Catalog reference DSSNR; L164DKC3.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be fully stopped and the turret or tool post de-energized before seating or removing the toolholder. Confirm the shank bore or tool post pocket matches the 1-inch by 1-inch shank profile before tightening. Follow the machine builder and Kennametal torque and clamping guidelines when securing the insert clamp screw to avoid insert micro-fracture or seat damage.