Twist drill grinding A sharp cutting edge, precise concentricity, a long service life - twist drills for professional use must be manufactured to an exemplary standard without neglecting the cost aspect. This is achieved by DRILLMAT, which grinds from blanks made of HSS in a single clamping set-up to produce a finished twist drill. The grinding wheel package ensures a perfect ground finish for twist drills with even the most complex cutting edge geometry. Integrated loading and unloading systems reduce downtimes.