Tubular Bowdrill for Carving Jade

The image shows a tubular bowdrill for carving jade by artist not provided. The tool has a light-colored wooden handle with darker marks and a small metal point protruding from one end. The other end of the handle is wrapped with a light-colored string or twine. The metal piece attached to the handle appears to be a dark-colored, possibly weathered or rusted, metal with visible signs of wear. The metal piece has a distinctive tubular shape with an opening along its length. The background of the image is a plain gray color.