Milwaukee 2656-20 M18 18V 1/4 Inch Lithium Ion Hex Impact, Power Tool Only). Cordless Impact Driver, Bare Tool, Drive Configuration Straight, Voltage 18.0, Drive Size 1/4 In. Hex, Brushless Motor No, No Load RPM 0 to 2750, Blows per Minute 0 to 3450, Max. Torque 1500 in.-lb., Battery Capacity 1.5Ah or 5.0Ah, Cordless Tool Battery Type Li-Ion, Handle Type Soft Grip, T, Battery Included No, Battery Pack Replacement Milwaukee M18 Li-Ion Battery LED LIGHTING: Keep your work illuminated with the LED lighting array located just below the quick-connect chuck TEXTURED HANDLE: The compact design of this power tool is complemented with the textured rubber grip, which gives you superior handling, even in slippery conditions VARIABLE SPEED TRIGGER: Apply pressure to the trigger to match the amount of power you need on the job. This can drive the motor to create up to 3,450 impacts per minute REDLINK TECHNOLOGY: Electronics inside the impact driver communicate with the M18 batteries that power it to reduce the risk of overheating, which results in more efficient work M18 COMPATIBLE: This cordless Milwaukee impact driver works with the M18 family of lithium ion batteries. Compatible models include the 48-11-1860, 48-11-1850, 48-11-1828, and 48-11-1815, 48-11-1840, 48-11-1820