The M18 FUEL 1-1/2 Magnetic Drill delivers safer drilling on steel by providing the industrys strongest holding force on this material. By utilizing permanent magnets, the magnetic base operates without electricity; ensuring that the magnet does not deactivate if the battery is drained. Equipped with Auto-Stop lift-off detection, power to the motor is automatically cut if excess rotational motion is detected while drilling. Powered by a Milwaukee POWERSTATE Brushless Motor, both drills are faster than their corded counterparts, and deliver the same 1-1/2 annular cutter capacity. REDLINK PLUS Intelligence is the most advanced electronic system on the market, preventing damage to the tool and battery caused by overloading or overheating.