Hertel 8000188 Carbide Shim 3/8 Inch Ic External Turning

Product Description

The HERTEL 8000188 is a carbide shim designed for indexable tooling systems used in external turning applications. Carbide shims seat between the insert pocket and the indexable cutting insert, providing a stable, wear-resistant backing surface that protects the tool holder and maintains precise insert positioning. This shim follows the SM shim style with a negative rake geometry and neutral cutting direction, making it appropriate for standard external turning tool holders that use cylindrical insert shapes. Machinists and tooling technicians install this component during insert changes or when rebuilding worn tool holder pockets on CNC lathes and manual turning centers.

This shim is suited for external turning operations in production machining environments. It is dimensioned for indexable inserts with a 3/8 inch inscribed circle and a thickness of 1/8 inch (0.1250 inches). The SM shim style and negative rake configuration are common in heavy-duty roughing and general-purpose turning setups. The package quantity is 1 shim per unit, with a minimum order quantity of 5 units. This part is confirmed compatible with the A16RPTFNR11 complete tool holder.

Key Features

• SM shim style with negative rake and neutral cutting direction
• Designed for cylindrical insert shapes with 3/8 inch inscribed circle
• Carbide construction provides hardness and wear resistance at the insert seat
• Thickness of 0.1250 inches for precise insert pocket depth control
• Compact dimensions: 0.55 inches length, 0.48 inches width, 0.13 inches height

Compatibility

Compatible with the A16RPTFNR11 complete tool holder. Designed for indexable external turning tool holders that accept cylindrical inserts with a 3/8 inch inscribed circle and SM-style shim seating.

Installation Notes

Carbide shims are installed by qualified machinists or tooling technicians during indexable insert maintenance. Ensure the machine spindle is fully stopped and the tool holder is removed from the turret or post before servicing the insert pocket. Inspect the shim seat and clamping screw for damage before seating the new shim. Do not overtighten the clamping screw, as carbide is brittle and can crack under uneven load.