Hertel 22ER6UNHG225TR Threading Insert 6 Tpi 1/2 in Ic

Product Description

The HERTEL 22ER6UNHG225TR is a laydown-style threading insert designed for right-hand external UN thread cutting at 6 threads per inch (TPI). Constructed from solid carbide with a TiAlN coating applied via PVD process, this insert delivers the heat resistance and edge hardness required for consistent thread form in production turning applications. The 1/2-inch inscribed circle and 0.187-inch thickness conform to standard 22ER geometry, allowing direct installation into compatible laydown threading toolholders. It is suited for machinists and CNC operators producing unified national (UN) external threads in steel, stainless, and similar materials.

This insert is used in CNC turning and manual lathe applications where external UN threads at 6 TPI are required. Typical scenarios include threading hydraulic fittings, fasteners, couplings, and other precision components. The right-hand cutting geometry and standard 22ER form make it a straightforward replacement or production-run insert for shops maintaining tooling inventories for unified thread standards. It is sold individually per package with a minimum order quantity of 10 pieces.

Key Features

• Solid carbide substrate for rigidity and wear resistance in interrupted and continuous thread cutting
• TiAlN PVD coating improves heat resistance and extends tool life in ferrous materials
• 6 TPI cutting geometry produces standard UN external thread form
• 1/2-inch inscribed circle with 0.187-inch thickness matches 22ER toolholder seat specifications
• Right-hand external thread orientation for conventional lathe and turning center setups
• Laydown insert style ensures repeatable indexing and seating in compatible holders

Compatibility

Designed for use in 22ER-style laydown threading toolholders configured for right-hand external UN thread applications at 6 TPI.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. The machine spindle must be stopped and all motion arrested before indexing or replacing the insert. Use the appropriate torx or hex key per the toolholder manufacturer's specification to seat the insert without over-torquing the clamping screw. Verify thread form and pitch against a thread gauge after first part before committing to a full production run.