Really impressive quality, after use it turned out to be of very good quality and made to strict high standards. Most often they are used in a drill press, but sometimes they are also used for milling. They are of excellent quality and do exactly the job we need them for. With little care and minimal maintenance, they will easily serve us for several years in every use, ie almost every day, with excellent results. Four stars βοΈβοΈβοΈβοΈ!