The Mac Tools 20V MAX 1/4" Brushless Impact Driver and 3/8" Brushless Impact Wrench feature three-speed settings and a variable speed trigger which enable the user to control the tool's speed, delivering 0-1,700, 0-1,950 and 0-2,800 rotations per minute, depending on the user's need. The variable speed trigger also features an electronic brake for optimal speed regulation. Integrating brushless motors, these tools offer a long runtime, the company says. The tools are designed with an ergonomic over-molded grip, a three-point LED light to help illuminate dark work areas and anti-mar bumpers for increased durability. In addition, both tools have glass-filled nylon housings to resist damage from most solvents present in an automotive environment. The 20V MAX* 3/8" Brushless Impact Wrench (No. MCF891) is 5.69" in length with 275 ft-lbs. of breakaway torque, and the 20V MAX 1/4" Brushless Impact Driver (No. MCF886) is 5.53" in length and provides 250 ft-lbs. of breakaway torque.