Dewalt DCF921N-XJ 18v Brushless 1/2 Compact impact wrench has upto 609 breakaway torque (406 Nm of fastening torque) ensures removal of the tightest bolts. Includes 2 x 21mm Impact Socket 80mm Deep Long Retaining Pin/O-ring Its Ultra compact, light weight design allows for use in confined areas while using its square drive with hog ring allows quick socket changes Hole in anvil allows securing of sockets with a retaining pin/rubber O-ring. Ideal for scaffolders. Variable trigger allows complete control over all applications. Efficient brushless motor delivers high performance, extends tool life and allows for much shorter design (only 125mm) Bright white LED with delay feature for improved visibility and functionality. Now with brightness control so you can dim or turn off the light to suit the environment Comfortable rubber XR grip and switch for greater application comfort and maximum control. (DCF921 is recommended for scaffolding) Scaffolding Mode Scaffolding Mode: Helps to