Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I20UNJ

The Carmex Carbide Threading Insert for UNJ threads is a versatile, TiAlN-coated cutting solution designed for professional machinists and job shops that need reliable, multi-profile threading capability in a compact, durable form.

• Five length options: available in 12 mm to 40 mm lengths to match a wide range of thread profiles and cutting depths.
• UNJ in TiAlN-coated carbide: rugged carbide substrate with TiAlN coating for improved wear resistance and longer insert life in demanding threading operations.
• Double-sided cutting edges: each insert provides two cutting edges (except for BSPT/NPT/NPTF/American Buttress/API RD profiles), maximizing usage before indexing.
• Internal & external capability: for many thread forms, the same insert can machine both internal and external threads, with exceptions for ISO/UN/NPSM/UNJ/Acme profiles.
• Wide pitch coverage: depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling common and practical threading tasks.

Designed to cover the most frequently encountered thread profiles, this UNJ threading insert helps machinists complete precision threads with reduced tool changes. Its durable carbide construction and TiAlN coating balance hardness and heat management, delivering consistent performance across a variety of metalworking applications. Whether you’re prototyping a component or producing a small batch, this insert provides dependable cutting edges, extended life, and flexible use across many standard threading tasks.