The cordless 2-piece 18 V Stanley Fatmax V20 combi set with 2 x 2.0 Ah lithium-ion batteries and the flat Stanley Fatmax Pro-Stack box features new and improved battery technology with no memory effect and minimal self-discharge. The kit includes an 18 V Stanley Fatmax V20 cordless impact drill and an 18 V Stanley Fatmax V20 cordless impact driver. The hammer drill delivers up to 25,000 blows per minute, up to 1,500 rpm and a torque of 50 Nm for efficient drilling in masonry as well as drilling and screwing in wood, metal and plastic. The impact wrench offers up to 2,800 rpm, 3,100 BPM and 165 Nm of torque for driving large fasteners and other high torque applications. Part of the new 18V Stanley Fatmax V20 battery system - power all your V20 tools with a common new and improved 18V lithium-ion battery to get the job done effortlessly.