The manufacturer claims this is one of the world's most popular cordless impact wrenches, with maximum torque of a staggering 285Ib/ft. Well, the keen price no doubt helps sales but, as this product failed to loosen our 120Ib/ft nut, we have some doubts about the figure. An on/off-style trigger and the lack of a spare battery also detract from the Sealey's performance.