Iscar 5920085 Laydown Threading Insert 22IRM IC250

Product Description

The ISCAR 5920085 is a laydown-style carbide threading insert designed for internal thread cutting on CNC lathes and turning centers. Manufactured from solid carbide with a PVD-applied TiN coating under the IC250 grade, this insert handles partial-profile 60-degree internal threads in a right-hand orientation. It covers a thread pitch range of 7 to 5 TPI (3.50 to 5.00 mm pitch) and seats in standard 22IR-series toolholders. The 1/2-inch (12.70 mm) inscribed circle and 0.188-inch thickness conform to ISO 13399 standards, making it straightforward to catalog and integrate into tool management systems.

This insert is suited for threading operations on cast iron, stainless steel, and steel workpieces in both production and job-shop environments. Machinists and CNC operators running internal threading passes on through-holes or blind bores will find the 22IR laydown geometry and M chipbreaker configuration appropriate for achieving consistent thread form. The IC250 grade with PVD coating provides wear resistance on abrasive and work-hardening materials. Inserts are sold individually but must be ordered in minimum quantities of five units per order.

Key Features

• Solid carbide construction with PVD TiN coating, IC250 manufacturer grade (C5/C6 material grade)
• Right-hand internal partial-profile 60-degree thread form
• Covers 7 to 5 TPI range (3.50 to 5.00 mm pitch)
• M chipbreaker for controlled chip evacuation during internal threading
• ISO 13399 compliant geometry for standardized toolholder integration
• 1/2-inch inscribed circle fits 22IR-series toolholders

Compatibility

Designed for use with 22IR-series internal threading toolholders. Compatible with workpiece materials including cast iron, stainless steel, and steel (ISO material codes K, M, and P).

Installation Notes

Insert seating and clamping should be performed with the machine spindle locked and all power isolated from the lathe or turning center. Confirm the toolholder pocket is clean and free of debris before seating the insert to ensure proper support and thread accuracy. Torque the clamping screw per the toolholder manufacturer specification. Always verify thread pitch and TPI setting in the machine controller before taking the first pass.