A grub hook, also known as a grab hook or slip hook, is a specialized type of hook used in rigging and lifting applications. It features a simple yet effective design with a narrow throat and a latch or clevis pin closure to prevent the attached load from slipping off accidentally. Grub hooks are commonly used with chain slings or wire ropes, providing a secure connection point for lifting heavy loads. They are particularly useful in situations where a temporary connection is needed or where the load may need to be released quickly and easily. 

Grub hooks are made from durable materials like alloy steel to ensure high strength and safety during lifting operations. Regular inspection, maintenance, and adherence to safety protocols are essential when using grub hooks to guarantee optimal performance and prevent accidents in various industrial and construction settings.