Features: 

• THE FLEX STACKED LITHIUM ADVANTAGE - 200% more power with 24V lithium, 300% longer runtime with THERMA-TECH™+ heat management, 100 % faster charging: 100% cross-compatible with all FLEX 24V tools and chargers.
  
• SENSOR-FREE™ BRUSHLESS MOTOR - Every FLEX 24V tool is built around an intelligent digital brushless motor designed to eliminate friction and optimized for higher efficiency and power.
  
• UNRIVALED POWER - High torque and speed
  
• 3 SPEED MODES - More control while fastening screws
  
• QUICK EJECT COLLET - Quickly insert or release bit with one hand
  
• SELF-TAPPING SCREW MODES - Optimized to avoid over-tightening, breaking or stripping
  
• FLEX 24V CROSS COMPATIBILITY - Compatible with all FLEX 24V batteries, chargers and tools. This kit includes 6.0Ah Stacked Lithium Battery and 280W Rapid Charger.

Details: 

Conquer fastening applications easily with the power and control of the 1/4" Quick Eject Hex Impact Driver, which delivers 2,500 in-lbs. of torque at 4,000 RPM for peak performance. Insert or release bits with one hand using the Quick Eject Collet. Avoid overtightening, breaking, or stripping with optimized Self-Tapping Screw Modes. Enjoy total control with three speed modes. This impact driver dominates with the FLEX Stacked Lithium Advantage: unmatched battery power, runtime, and charging capability. Includes impact driver, battery, and charger.