Vue de Dessus (Top View) This view is projected below the front view. It shows the length and depth. Total Length: 80 mm. Total Width: 40 mm. Key Features: The top surface (40 \times 40) with the 10 mm slot running through it. The right-hand extension (the "tongue") which is 30 mm wide. The small rectangular cutout on the right: 12 mm deep and 20 mm wide (centered on the 40 mm width). See more