Set the direction of rotation selector in the OFF position to lock the switch trigger and help prevent accidental starting when not in use. To turn it OFF, release the switch trigger and allow the chuck to come to a complete stop. For complete charging instructions, see the operator’s manuals hart tool chest for your… Continue reading HART 20-Volt Cordless Brushless Drill and Impact Combo Kit with 10-inch Storage Bag, 2 2 0Ah Lithium-Ion Batteries