1/2 Inch Keyless Metal Chuck. Heavy-Duty High Torque. Two Speed Gear Box (0-400 rpm / 0-1700 rpm / 0-19200 bpm Impact). Variable Speed Trigger with Forward/Reverse Switch. Built-in High Output LED Light Illuminates Work Surface for Increased Visibility. Includes 6 Drill Bits, 6 Screwdriver Bits and 1 Bit Extender. Includes 20V Lithium-Ion Battery with LED Battery Level Indicators. Intelligent Charger Prevents Damage to Battery.