California Proposition 65: This product contains a chemical known to the State of California to cause cancer. California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.Experience added versatility with available air drills that are reversible which offer an important feature useful when removing and installing nuts and bolts, working with fasteners, or drilling holes. Here are some important details for the Air Drill : DUTY: Light, FREE SPEED: 1875 rpm, HOUSING MATERIAL: Composite