Electronically controlled BL brushless motor optimizes energy use to match torque and RPM with application demands. Brushless motor, sans carbon brushes, runs cooler, more efficiently, with longer life. 1-touch 1/4 hex chuck for quick bit changes; all-aluminum gear housing boosts job site durability. Brushless motor: 1,500 in.lbs. max torque, variable speed (0-3,400 RPM, 0-3,600 IPM) for diverse fastening tasks. Extreme Protection Technology (XPT) enhances dust and water resistance for harsh-condition operation. Compact and ergonomic design at only 5 in. long Built-in twin LED lights illuminate the work area Rubberized soft grip provides increased comfort on the job. Tool only (battery and charger not included). Makita®'s exclusive hammer-anvil impact mechanism: top-grade steel and special heat-hardening for peak fastening/driving power.