Ideal drills for use in cordless tools. The hexagon prevents the drill bit from slipping in the chuck. For drilling in iron, cast iron, non-ferrous metals, alloy and non-alloy steel, wood and plastics. 1/4, material HSS, standard DIN338, in a set of 7 pcs, diameter: 1.5-2-3-4-5-5.5-6 mm. [***]