STHOR 22610 gradual drilling drill Designed for drilling in high -quality stainless steel, construction and rolled Nazimno, in colored metals, steel sheets, plastic. • The edges of the drilled the tip remain clean and unmistakoles • drilling, surfaces • automatic centrifugation on rounded and slippery surfaces • fast -leaving heat when drilling in hard materials • made of high -speed HSS steel, nitride with titanium • graduated every 2 mm Cylindrical handle.