A drill is a tool used for making round holes or driving fasteners. It's fitted with a bit, either a drill or driver chuck. Hand-operated types are dramatically dwindling in fissionability and cordless battery-powered bones. Proliferating due to increased effectiveness and ease of use. Drills are generally used in woodworking, metalworking, construction, machine tool fabrication, construction and mileage systems. Especially designed performances are made for atomic operations Drills powered by electricity (or further infrequently, compressed air) are the most common tools in woodworking and machining shops. Electric drills can be corded (fed from an electric outlet through a power string) or cordless (fed by rechargeable electric batteries). The ultimate has removable battery packs that can be shifted to allow continued drilling while recharging. A popular use of hand-held power drills is to set screws into wood, through the use of screwdriver bits. Drills optimized for this purpose have a clutch to avoid damaging the places on the screw head.