Kennametal 1017180 Indexable Threading Shim Sm Triangle

Product Description

The KENNAMETAL 1017180 is an SM-style shim designed for indexable threading toolholders. Shims seat between the toolholder pocket and the cutting insert, providing a stable, repeatable mounting surface that resists deformation under the cutting loads typical of threading operations. This shim accepts triangle-shaped inserts with a 5.31 mm (0.2090 inch) inscribed circle and measures 0.1575 inches thick. It is compatible with both left-hand and right-hand cutting directions, making it a versatile stock item for shops running multiple threading setups. Installation is performed by machinists and toolroom technicians during insert changes or toolholder reconditioning.

This shim is intended for use in indexable threading applications where a worn or damaged pocket seat must be restored to proper insert-seating geometry. It is suited for CNC turning centers, engine lathes, and manual lathes equipped with indexable threading toolholders that accept SM-style shim seats. The triangle insert shape is common across a wide range of external and internal threading operations in both production and job-shop environments. Stocking this shim alongside compatible triangle threading inserts reduces downtime during scheduled insert changes.

Key Features

• SM shim style for indexable threading toolholders
• Accepts triangle inserts with 5.31 mm (0.2090 inch) inscribed circle
• 0.1575 inch thickness for precise insert pocket height restoration
• Compatible with both left-hand and right-hand cutting directions
• Lightweight at 0.02 pounds, minimizing added mass in the toolholder pocket

Compatibility

Designed as a replacement SM-style shim for indexable threading toolholders accepting triangle inserts with a 5.31 mm inscribed circle in left-hand or right-hand cutting configurations.

Installation Notes

Shim replacement is performed by qualified machinists or toolroom personnel. Power down and lock out the machine before accessing the toolholder pocket. Remove the clamp screw and existing insert before extracting the worn shim. Seat the new shim flush in the pocket before reinstalling the insert and clamp to the toolholder manufacturer's specified procedure. Inspect the pocket for debris or damage before installation to ensure proper insert support.