Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E16UNJ A&NF confident checks to verify hole

confident checks to verify hole tolerances in the 6H class

and finishing passes on metal and composite materials

The precise pitch-diameter check supports consistent quality across production runs

reducing chatter and the risk of cross-threading

parting-off and grooving tool designed for Swiss-type lathes and automatic lathes

Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E16UNJ A&NF confident checks to verify holeThe Carmex Carbide Threading Insert UNJ, TiAlN Coated (model 21E16UNJ) is a versatile, high precision cutting solution built for professional machining where reliable multi profile threading is essential. Designed for machinists who want fewer tool changes and consistent results across common thread forms. Thread profiles covered: A comprehensive collection of carbide threading inserts that span all common thread profiles to support diverse projects.