engis is the largest independent micronizer of diamond and cbn powders in north america and a global leader in the industry. thanks to decades of experience and drawing on a staff world renowned for their expertise, engis......engis is the largest independent micronizer of diamond and cbn powders in north america and a global leader in the industry. thanks to decades of experience and drawing on a staff world renowned for their expertise, engis is unsurpassed in its ability to process diamond and cbn powders. no other firm in the industry can match engis ability to control particle size distribution, particularly in the sub-micron range. engis advanced processes also ensure the maximum purity of the product, free from any contaminants or irregular particles.