The Carmex Carbide Threading Insert (ISO/METRIC, TiAlN Coated) is a versatile, high-precision solution designed for engineers and machinists who need reliable threading performance across a wide range of profiles. Part number 12I1.25ISO, this insert pairs a durable carbide substrate with a TiAlN coating to deliver consistent results in demanding environments.

• TiAlN-coated carbide: Hardened carbide with a TiAlN coating for enhanced wear resistance and heat tolerance during threading.
• Length options: Five lengths available, spanning from 12 mm to 40 mm, to fit a variety of toolholders and setups.
• Thread profiles covered: Supports all common ISO metric thread profiles with pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).
• Double-sided cutting edges: Each insert provides two cutting edges for extended tool life (except for BSPT/NPT/NPTF/American Buttress/API RD).
• Internal/External versatility: For many profiles, the same insert can machine both internal and external threads (with noted exceptions).
• Smart geometry for precision: Designed to deliver clean, accurate thread forms with consistent surface finish across multiple uses.

This single, well-rounded insert reduces the need to stock numerous variants, helping shops streamline tooling inventories while still delivering reliable, repeatable thread results. The combination of ISO/Metric compatibility, robust TiAlN coating, and a practical range of lengths makes it a practical choice for general production threading, repair work, and prototype machining alike. Note that certain thread types (BSPT/NPT/NPTF/American Buttress/API RD) have edge and capability exceptions—plan accordingly for those specific profiles.