Dorian Tool 73310190072 Indexable Shim 1/2 in Ic Iwsn

Product Description

The DORIAN TOOL 73310190072 is an IWSN-style shim seat designed for indexable boring and turning toolholders. It fits trigon-shaped inserts with a 1/2 inch inscribed circle and provides a negative rake seating surface. At 3/16 inch (0.1875 inch) thick, this shim seats squarely beneath the insert to protect the toolholder pocket from cutting forces and wear. Each order includes 10 shims, making it a practical restocking quantity for shops running continuous turning or boring operations. Licensed machinists, toolroom technicians, and CNC setup personnel are the typical end users.

This shim is suited for use in production turning and boring applications where indexable trigon inserts are used with negative rake toolholders. It is part of the Series 733101 lineup and corresponds to catalog number IWSN-433. It is appropriate for both manual and CNC lathe setups as well as boring bar applications in machining centers where insert seat protection is required to maintain consistent tool geometry across multiple insert changes.

Key Features

• IWSN shim style matches toolholders requiring negative rake insert seating
• Compatible with trigon insert geometry and 1/2 inch inscribed circle
• 0.1875 inch (3/16 inch) thickness provides consistent seating depth
• 10 shims included per order for efficient shop restocking
• Protects toolholder pocket from direct insert contact and progressive wear

Compatibility

Designed for use with IWSN-style toolholders in Series 733101 accepting trigon inserts with a 1/2 inch inscribed circle and negative rake geometry. Catalog reference: IWSN-433.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians during insert seat service or toolholder maintenance. Ensure the toolholder is removed from the machine and all power is off before servicing the insert pocket. The shim must seat flat and flush in the pocket before the insert and clamp are positioned. Inspect the pocket for debris or damage before placing the new shim to avoid seating errors that affect tool geometry.