FUEL features the most advanced cordless technology in the industry, a POWERSTATE Brushless Motor, REDLINK PLUS Intelligence and REDLITHIUM Battery Technology, delivering unrivaled performance Powerstate Brushless Motor provides constant power under heavy load and is engineered uniquely for the demand of each tool RedliThium batteries last longer, think faster and work harder than all other professional LITHIUIM-ION batteries Fastest Drilling and Driving applications under load Mechanical Clutch for consistency in driving a wide range of fasteners Single Handed Bit Insertion for Ease of Use Part of the M18 System, with over 200+ Cordless Solutions Auto Stop control mode enhanced safety 1/2 in all metal chuck with carbide teeth for maximum durability, grip and bit retention LED light for better visibility in low light situation Only 6.9 in length for access into tight space and reduce fatigue Hammer drill mode for fast drilling into Brick, Block or Concrete Up to 3900 RPM for the Impact Driver