IDEX LiteTouch MicroFerrule can be used with hard tubing like stainless steel and PEEK Tubing preventing the collapse of tubing ID. This LiteTouch PEEK ferrule has a stainless steel lock ring. It is designed for 1/32OD tubing. This ferrule is part of a system that helps prevent the twisting of polymer tubing by gripping tubing at two compression points. ** Please note - due to the fixed length of the ferrule tip the ferrule may not work in all coned ports. Contact IDEX Health & Science technical support for more information.