Kennametal 1017250 Indexable Turning Shim 0.5 in Ic

Product Description

The KENNAMETAL 1017250 is a ceramic shim designed for indexable turning toolholders. It seats beneath the cutting insert to provide a stable, repeatable reference surface and protect the toolholder pocket from wear and impact damage. The shim is 0.5 inches inscribed circle (IC) and 0.13 inches thick, built to the ICSN shim style with a negative rake geometry. It accepts diamond-shaped inserts and supports both left-hand and right-hand cutting directions. Ceramic construction provides the hardness and thermal resistance required in high-speed turning applications. Installation is straightforward and the shim is compatible with standard ICSN-style toolholder pockets.

This shim is intended for use in CNC turning centers and manual lathes running indexable tooling systems. It is suited to applications where diamond-shaped negative-rake inserts are used in turning operations. Compatible toolholders include MCLNLC164D and MCLNRC164D. The ICSN shim style is a common replacement item during routine insert changeovers and toolholder maintenance in both production and job-shop environments. Machinists and toolroom technicians are the primary users of this component.

Key Features

• ICSN shim style fits standard ICSN toolholder pockets
• 0.5 inch inscribed circle matches diamond-shaped indexable inserts
• 0.13 inch thickness provides consistent insert seating depth
• Negative rake geometry compatible with negative-rake insert configurations
• Ceramic material offers high hardness and thermal stability
• Supports both left-hand and right-hand cutting directions

Compatibility

Compatible with toolholders MCLNLC164D and MCLNRC164D. Accepts diamond-shaped indexable inserts with a 0.5 inch inscribed circle in ICSN-style toolholder pockets.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered down and the spindle locked. Ensure the toolholder pocket is clean and free of chips or debris before seating the shim. Verify shim orientation and seating before torquing the insert clamping screw to the toolholder manufacturer specifications. Inspect the shim for cracks or wear at each insert changeover.