? ???????? ?????????????????? - The countersinks are manufactured according to DIN 335-C. The high hardness and the enormous wear resistance guarantee optimal power transmission to the shaft and thus a long service life. ???????????????? ?????????????????? - Our powerful countersinks have a 90° recess angle. Reliable and precise countersinking is achieved in all common materials such as steel, cast steel and non-ferrous metals. ?????????? ???????????? - Thanks to the special and elaborate industrial cut, our countersinks are very sharp and particularly the lowering into soft materials such as wood or plastic succeeds without tearing. ?????????????????????? ?????????????????? - These countersink drill bits fit perfectly into any standard drill chuck: our countersink replacement covers the most common sizes from diameter 6.3 mm to 16.5 mm. ????????. ???????????????????????????? - Thanks to the included practical plastic tool box, the countersinks are always perfectly organised and easy to store.