Designed to hold and hold with a leverage principle, the special jaw structure improves holding power and durability; 22 angles on the knobs section makes it easy to grasp at 3 places; remove broken screws, rusted screws, Total length: 7.3 inches (185 mm); Grip width: 2.1 inches (53 mm); Thickness: 0.5 inches (13 mm); Tip width: 0 mm); Compatible screws: M2 mm); The gripping power is far awesome. Up carbon steel Grip: PVC Total Length: 7.3 inches (185 mm) Grip Width: 2.1 inches (53 mm) Tip Width: 0.3 inches (7 mm) Thickness: 0.5 inches (13 mm) Tip Length: 1.2 inches (30 mm)