The dewalt dck255p2 brushless twin pack contains the following 1 x 18 volt dcd995 brushless xrp hammer drill with a tough three speed all metal transmission for increased runtime and longer tool life part of the intelligent xr lithium ion series designed for efficiency and faster applications chuck 15 13mm no load speed 0 4500 13000 2000min impact rate 0 76500 221000 34000min max torque 80nm drilling capacity wood 50mm steel 13mm masonry 16mm 1 x 18 volt dcf886 brushless impact driver with brush