Accuracy: Right angle: Less than 0.004 inch (0.1 mm) per 3.9 inch (100 mm); Length tolerance: Less than 0.008 inch (0.2 mm) Table scale: Long branches: Outer scale: 3.9 inches (10 cm), Inner scale: 0.04 inch (1 mm) pitch: 3.9 inches (10 cm); Short branches: 2.0 inches (5 cm); Inner scale: 0.04 inch (1 mm) pitch 2.0 inches (5 cm) Back scale Long branch: Outer scale 10cm inner scale 1cm pitch 10cm Short branch: outside scale 5cm inner scale 1cm pitch 5cm Shape: Same Thick Material: Stainless steel. Note: Do not use in places where there is a risk of contact with electricity, Weight: 0.0220462262 Pounds, Manufacturer: SHINWARULES