Clamshell grapple

Here is a really interesting 3D tool, a 3D Clamshell grapple. So, usually a 3D grapple is a model of a hook or claw used to catch or hold something. This very 3D Clamshell grapple can be used in visualizations depicting the process of logging. Thus, this 3D Clamshell grapple can be mounted to a 3D tractor or a 3D excavator with a movable arm that may lift, extend/retract, and move side-to-side. Some machines also have a separate control for rotating the 3D grapple.