VERSATILE POWER TOOL -- 1/2 inch & 5/16 inch Quick Chuck and Key Type combines the features of Electric Screwdriver, Impact Wrench and Drill; which can replacement for a cordless drill combo kit. 1/2in Impact Wrench - for bolts and nuts; Cordless Screwdriver - collet accepts 1/4in driver bit; Cordless Drill - drilling with a 1/4in hex drill bit.Impact Driver - Good for home renovation, construction projects, industrial equipment or spare parts maintenance, and motorcycle repair. POWERFUL BRUSHLESS MOTOR -- High performance brushless motor deliver torque up to 980Nm(8674 in-lbs) for effortlessly loosen/tighten any rusted-on or over tightened lug nut, bolt or large screw; it can also optimizes machine's efficiency, increases 10X motor life and 50% more runtime of per charge, no wear down and spark, less maintenance, lighter weight and more compact size. FAST CHARGER 4.0A & EASY USE PANEL -- With a fast charger, this rechargeable 21V 4.0 Ah lithium-ion battery can be fully charged within only 2-3 hours, large capacity power ensure a long time continouse work. Intelligent control panel easy to see speed lever and remaining power; The function button is really convenient for function switch. VARIABLE SPEED & FAST DIRECTION SWITCH -- Press trigger in different strength you can very easily control the speed of your wrench from 0-3800 RPM and impact rate from 1-3600 IPM. Forward/Reverse button with Secure Lock allows easy drilling and fastening.