New building key, a solid metal key made of malleable cast iron, with a wide range of possible uses in buildings, especially new buildings. Features: 6, 7 and 8 mm square socket, 6-10 mm square socket for doors and windows without fittings. 3 mm hexagon socket key for grub screws on door handle levers, pin for closing and opening profile cylinder lock holders (17 mm Ø). Depth gauge for built-in locks 22-75 mm, bottle opener. Total length 195 mm.