Powerful Motor & High Torque: Maximum torque of 180N. M, along with variable speed up to3600RPM, this impact driver can drive screws or tighten nuts at astonishing speed. Compact & Lightweight: Compact design can help you fit into tighter areas, and ultra-lightweight (1000g) makes it effortless to be used for a long time, thus minimizing user fatigue. Bright Led Lights: With round built-in lights, which can increase your visibility in enclosed workspaces or any dark environment and let you effortlessly screw wood, plastic, drywall, brick, concrete, and metal. Quick Tool Bits Change: With this special chuck, you can easily and quickly remove bits from the tool by simply pulling back on the collet.