The Wilton vise with jaw width of 4 inches and jaw opening of 3-3/4 inches is a robust and sturdy tool designed for heavy-duty work. It features a 4-inch wide jaw that provides a strong, secure grip, while its 3-3/4 inch jaw opening allows for securely holding various sizes of work pieces. This vise is built with quality materials to endure rigorous use, making it ideal for both professional and amateur workspaces.