Hertel 8000176 Indexable Shim 5/8 in External Turning

Product Description

The HERTEL 8000176 is a carbide shim designed for indexable external turning toolholders. It provides a precision-ground seating surface that supports and protects the toolholder pocket from insert-to-pocket contact during cutting. This shim follows the ITSN style specification, suited for negative rake, neutral cutting direction setups with triangular insert geometries. The inscribed circle measures 5/8 inch (0.6250 inches), and the shim thickness is 3/16 inch (0.1875 inches). Machinists and toolroom professionals install these shims to maintain consistent insert positioning and extend toolholder seat life in production turning operations.

This shim is intended for external turning applications on CNC lathes and manual turning centers where indexable insert toolholders are used. It is specifically noted for compatibility with the A16RPTFNR11 complete toolholder. The ITSN shim style is standard in negative rake triangular insert systems commonly found in general-purpose and production turning setups across metalworking shops handling steel, cast iron, and similar workpiece materials.

Key Features

• ITSN shim style for negative rake, neutral cutting direction toolholder systems
• Compatible with triangular indexable insert geometry
• 5/8 inch (0.6250 inch) inscribed circle matches standard triangular insert sizing
• 3/16 inch (0.1875 inch) thickness for precision pocket depth control
• Carbide construction resists deformation under high cutting loads
• Protects toolholder seat from insert wear and extends pocket service life

Compatibility

Compatible with the A16RPTFNR11 complete toolholder. Designed as an OEM-style replacement shim for external turning toolholders using ITSN-style shim seats with triangular negative rake inserts and a 5/8 inch inscribed circle.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the toolholder is fully removed from the machine and all clamping components are disassembled before replacing the shim. The shim seat and pocket should be cleaned of chips and debris before seating the new shim. Verify that the shim seats flat and fully in the pocket before reinstalling the insert and clamp to prevent insert rocking or premature edge failure.