Get the sub-compact hex impact driver with best-in-class performance. The M12™ Cordless Lithium-Ion 1/4" Hex Impact Driver features a Milwaukee® 4-pole motor and proprietary impact mechanism to provide 850 in-lbs of torque and more impacts per minute for maximum productivity and runtime.  Weighing just 2.3 lbs, it’s tool-belt portable and small enough to fit in tight spaces. The M12 REDLITHIUM™ Battery Pack (sold separately) delivers more work per charge and more work over pack life than the competitors, as well as best-in-class performance in extreme jobsite conditions. The variable-speed trigger provides increased user control.  The M12 1/4" Hex Impact Driver’s lightweight, compact design minimizes user fatigue. An on-board, real-time battery fuel gauge helps you monitor the charge precisely, so there’s less downtime on the job. Use the built-in LED light to illuminate work surfaces in dark locations.