The universal drill is made of HSS high-speed steel using the rolling method. Apex angle 135º. double angle point sharpening. due to which the required compressive force is lower. less heating of drill and material. which prolongs the life of the drill and preserves its sharpness. Spiral angle 30º. Steel. cast steel. cast iron. for drilling stainless material. For manual and machine drilling. DIN338. Material 6542.