The PJID143, a Cordless Brushless Impact Driver, is both the smallest and most powerful in its class. The compact PJID143 is only 5-1/4" and 3.2 pounds. Though small in size, the PJID143 utilizes a voltage control mechanism that allows it to maintain high speed, even when the battery charge is low. With a brushless motor, the PJID143 provides higher efficiency, longer life, and reduced noise. The motor is completely enclosed, blocking it from dirt and other foreign matter. For additional safety, it comes with a sleeve protector to prevent work surfaces from being marred during final tightening.