Micro Bar Clamp / Spreader, with a maximum jaw opening of 4-3/8 inches and a throat depth of 1 1/4 inches, this clamp is made of lightweight, strong, high-tech resin, and easily converts into a spreader. The handles are designed for comfortable hand span and the soft durable pads protect delicate work, making this clamp excellent for hobby work. Newell/Rubbermaid clamps are made of only the finest materials, manufactured to exacting tolerances.