Heat-resistant mechanics-style gloves protect hands from hot metal and high-temperatures when working in foundries or near kilns. Mechanics-style gloves have good dexterity and are often worn when performing basic tasks in automotive maintenance and general repair operations. Heat-rated gloves have been tested to determine the temperature at which a worker will begin to feel a burn when handling an item. This time is affected by temperature, object weight, and length of time the object is held. Higher numbers (5) indicate that the glove provides greater protection than lower numbers (1).