Universal switchboard wrench, 7-in-1 tool for square, triangular, double bit, mixing nozzle screws, for locking systems in switchboards, shut-offs, building services and water supply. Magnetic bit holder with secure grip. Textured surface with rounded edges, non-slip and ergonomic in the hand made of metal substitute high performance polymer, very robust for high torques. Practical in your pocket or on your key ring. Inside square 5, 6 and 8 mm, inside triangular 9 mm, double bit 3...5 mm, mixing nozzle wrench SW 22 and SW 26, bit holder hexagon socket 1/4".