cbn-plated grinding tools our su formtool philosophy is to offer customers a real alternative to established suppliers of cbn-plated grinding wheels and, in particular, we see ourselves as the experts when it comes to har......cbn-plated grinding tools our su formtool philosophy is to offer customers a real alternative to established suppliers of cbn-plated grinding wheels and, in particular, we see ourselves as the experts when it comes to hard finishing gears. quality, flexibility and customer service are always number one priorities as we strive to bring you satisfaction, since only this way will we be able to fulfil our aim of being more than just an alternative. let us surprise you.at a glance our products include: - cbn-plated grinding wheels for involute and special profiles, rotors and spline shafts as well as for hob and broach resharpening - cbn-plated worm wheels for efficient mass production of gears - profile grinding wheels with fixed spindle attachments, specially design for aeronautics.