K-Coating 

K-coating is a silver-colored, multi-layer, multi-phase coating, developed at IVAC. 

It has proven itself in cutting and forming applications both for ferrous and non-ferrous metals. K-Coated tools achieved exceptionally good results in threading, tapping, and grooving of hard-to-machine, gummy materials, such as 316L cold rolled stainless steel and Inconel 718. 

Several companies specified our K coating as the PVD coating of choice for tapping NPT threads into cold rolled austenitic stainless steels. 

A six-month deep-hole drilling study in cast hyper-eutectic Al-Si alloys demonstrated a 10-fold life increase for K-coated drills compared to TiN coated drills, while retaining the original surface finish.