Technical data Diameter 1 / 1,5 / 2 / 2,5 / 3 / 3,5 / 4 / 4,5 / 5 / 5,5 / 6 / 6,5 / 7 / 7,5 / 8 / 8,5 / 9 / 9,5 / 10 mm Nineteen-part HSS drill bit case for metal processing. The high-quality HSS spiral drill bits of 1–10 mm are stowed in the drill bit case so that they are clearly organised and quickly at hand.