Hertel 22IR6UNHG225TR Threading Insert Solid Carbide 6 Tpi

Product Description

The HERTEL 22IR6UNHG225TR is a solid carbide laydown threading insert designed for right-hand internal UN threading operations on CNC lathes and turning centers. It carries a TiAlN coating applied via PVD process, which improves wear resistance and heat tolerance during high-speed thread cutting. The insert features a 1/2 inch inscribed circle, a thickness of 0.187 inches, and cuts at 6 threads per inch. It is intended for machinists and toolroom professionals running internal threading passes on ferrous and non-ferrous workpieces where dimensional accuracy and tool life are priorities.

This insert is suited for internal threading in production and job-shop environments where UN thread standards are required. The 22IR insert style seats in compatible laydown-style toolholders used on manual and CNC lathes. The right-hand cutting orientation and 6 TPI specification make it appropriate for threading larger-diameter bores in steel, stainless, and similar materials. It is sold individually but carries a minimum order quantity of 10 pieces per order.

Key Features

• Solid carbide substrate for rigidity and wear resistance in threading applications
• TiAlN PVD coating enhances surface hardness and thermal stability
• 6 TPI cutting geometry for UN internal thread standard
• Right-hand cutting orientation for standard internal threading passes
• 1/2 inch inscribed circle fits 22IR-style laydown toolholders
• 0.187 inch insert thickness for positive seating in compatible holders

Compatibility

Designed for use in 22IR-style laydown threading toolholders that accept a 1/2 inch inscribed circle insert. Verify holder geometry and seating pocket dimensions before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or removing the insert. Use the correct torque wrench and clamping hardware specified by the toolholder manufacturer — do not overtighten the clamping screw. Inspect the insert pocket for chips or debris before seating to ensure proper contact and accurate thread form.