Features: 2 speed ranges 0-500/0-1,500 rpm for increased user flexibility providing a wide range of applications 320 unit watts out of maximum power for heavy-duty applications such as turning large bits and fasteners Multi-grip trigger provides comfort and convenience by allowing the user to get into tighter spaces while still having access to the trigger Variable speed and reversing gives the user the ability to control speed Durable, right angle transmission with sealed ball bearing for a longer tool life Voltage 18 V Max Power 320 UWO Chuck Size 3/8 " # of Speed Settings 2 RPM 0-500/0-1,500 Chuck Type plastic, ratcheting Tool Weight 2.8 (tool only) lbs Shipping Weight 3.25 lbs Includes: Tool only (batteries and charger sold separately)