Carmex Carbide Threading Insert - PG - TiAlN Coated - 21-16PG ER Mini Collet Chucks Ideal for engineers and shop

Ideal for engineers and shop floors requiring a metric

Left-Hand UNF Compatibility: Specifically engineered for left-hand threads

and predictable quality

is a precision finishing tool designed for reliable bore sizing in production environments

Carmex Carbide Threading Insert - PG - TiAlN Coated - 21-16PG ER Mini Collet Chucks Ideal for engineers and shopCarmex Carbide Threading Inserts in PG size with TiAlN coating deliver a durable, versatile solution for precision threading across common profiles. Built for professional shops and serious hobbyists, these inserts prioritize reliability, edge life, and consistent results in a compact, easy to use package. Coating: TiAlN coated carbide for enhanced hardness, heat resistance, and extended edge life during high speed threading. Material: Carbide