The DEWALT 20V Max XR Lithium Ion Brushless 3-Speed Hammerdrill Kit is ideal for most drilling and hammering applications. This hammer drill features an innovative brushless design. The 20-Volt Max Lithium Ion battery packs are designed for long run time and shelf life.Features DEWALT-built high power, high efficiency brushless motor delivers up to 57% more run time over brushed XR Li-ion batteries with fuel gauge provide 33% more capacity over standard packs Heavy-duty 1/2 in. ratcheting nitro-carburized metal chuck with carbide inserts for superior bit gripping strength LED Spotlight Mode features 20 minute shutoff function allowing for extended work time in dark or confined spaces Specifications 0-450 / 0-1300 / 0-2000 RPM in drill mode 0-500 / 0-1500 / 0-2250 RPM in hammerdrill mode 0-38,250 BPM for fast drilling in masonry materials Max Power:820 UWO Chuck Type:Metal Ratcheting Type: Hammer Drill Kit Voltage: 20V Quantity: 1 Weight: 11 lb Max Chuck Size: 1/2"