Kennametal 1017248 Indexable Shim Boring Bar Irsn

Product Description

The KENNAMETAL 1017248 is an IRSN-style shim designed for indexable boring bar tooling. It provides a precise seating surface for cylindrical indexable inserts in negative rake configurations. The shim measures 0.5 inches inscribed circle with a thickness of 0.25 inches. Manufactured for use in boring bar assemblies, it maintains accurate insert positioning and protects the tool body pocket from wear and damage during cutting operations. Machinists and toolroom technicians rely on shims like this to extend tool body life and maintain consistent insert height when rotating or replacing cutting edges.

This shim is intended for use in indexable boring bar setups that require IRSN-style shim geometry with a negative rake orientation. It is suited for precision boring operations on CNC lathes and manual boring equipment where cylindrical insert retention and consistent seating are critical. The 0.5-inch inscribed circle dimension matches corresponding cylindrical insert sizes in standard boring bar cartridges.

Key Features

• IRSN shim style engineered for negative rake indexable tooling
• Compatible with cylindrical insert shapes at 0.5 inch inscribed circle
• Thickness of 0.25 inches for precise insert seating depth
• Designed to protect boring bar pocket from insert-load wear
• Sold individually; minimum order quantity of 10 units

Compatibility

Designed for use with cylindrical indexable inserts in IRSN-style negative rake boring bar tool holders requiring a 0.5-inch inscribed circle shim.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians during indexable insert changeover or tool body maintenance. Ensure the boring bar is fully secured and spindle power is off before accessing the insert pocket. Clean the shim seat thoroughly before placing the shim to avoid seating errors. Use the appropriate torque wrench per the tool body manufacturer's specifications when reinstalling the insert clamp screw.