Iscar 5505709 Turning Shim Rdt 0.5 Inch Diamond Insert

Product Description

The ISCAR 5505709 is an RDT-style shim designed for indexable turning toolholders. Shims seat beneath the cutting insert to maintain correct cutting edge height and protect the toolholder pocket from wear. This shim is compatible with diamond-shaped inserts and features a negative rake orientation. It accommodates both left-hand and right-hand cutting directions, making it a versatile pocket component for turning operations. The inscribed circle is 0.5 inches (12.70 mm). At 0.1 pounds, this is a small but precision-critical component that directly affects insert stability and surface finish quality in turning applications.

This shim is intended for use in CNC and manual turning setups where RDT-series indexable toolholders are in service. It is suited for shops running diamond-shaped negative rake inserts in external turning operations. Compatible toolholder styles include the C-DDJNR/L series and the HSK A63WH-DDNNN-J15 complete tool holder system. Machinists and toolroom personnel performing insert changeovers or toolholder refurbishment will typically source this component to restore a worn or damaged shim seat.

Key Features

• RDT shim style designed for negative rake diamond insert seating
• 0.5 inch (12.70 mm) inscribed circle for correct insert fit
• Supports both left-hand and right-hand cutting directions
• Compatible with C-DDJNR/L toolholder style series
• Fits HSK A63WH-DDNNN-J15 complete toolholder system
• Lightweight at 0.1 pounds for minimal toolholder mass impact

Compatibility

Compatible with C-DDJNR/L series toolholders and the HSK A63WH-DDNNN-J15 complete tool holder. Designed for use with diamond-shaped indexable inserts in the RDT series turning system with a 0.5 inch inscribed circle.

Installation Notes

Installation is performed by machinists or toolroom technicians during insert changes or toolholder maintenance. Ensure the toolholder is removed from the machine spindle and all motion has stopped before accessing the insert pocket. Inspect the shim seat for debris or damage before seating the new shim, as contamination under the shim can affect insert position and cutting performance. Follow the toolholder manufacturer torque and clamping sequence for the insert screw after shim placement.