Makita-built brushless motor delivers 970 in.lbs. of Max Torque Compact and ergonomic design at only 6-7/8" long 2-speed transmission (0-550 & 0-1,800 RPM) for a wide range of drilling and fastening applications All metal 1/2" self ratcheting chuck for improved bit gripping strength and durability Weighs only 4.65 lbs. with 5.0Ah battery for reduced operator fatigue