ACDelco P20 series 20V BRUSHLESS 1/4" Impact Driver Kit, 2-Battery Pack (2.0 Ah), Quick Charger, Case P20 Series Tools are designed with Power-for-Pros in mind. The family includes a wide range of tools, all equips with advanced motor technologies to deliver monstrous power, all share a common powerful 20V Li-ion battery platform Brushless Motor (BLDC) is advanced motor technologies which integrates electronics control board and servo system in the motor assembly and replaced mechanical commutator contact ("brush") used in traditional brushed motor design. The brushless motor provides many advantages; * High power-to-weight ratio and precise torque control * High energy efficiency – 50% longer running time and longer life span * Eliminating carbon brush/commutator worn out and replacement hassle * Eliminating sparking and overheat problem FEATURES * BRUSHLESS Motor deliver longer running time & life cycle * Precise Electronic Torque & Speed Control (73 / 133 / 162 ft-lbs options) * Variable Speed Trigger & Durable metal gearbox housing * Built-in LED light & battery indicator, Ergonomic soft grip design * P20 Battery platform. One Battery for all professional grade tools SPECIFICATIONS * Voltage: 20V * Drive: 1/4" Hex Drive * Max Torque: 73 / 133 / 162 ft-lbs * No Load Speed: 0 to 1,200 / 0 to 1,900 / 0 to 3,000 RPM * Impacts per minutes: 0-3,000 IPM * Tool Weight: 3.8 lbs