Bosch CLPK414-181 18V 4-Tool Combo Kit with 1/2" Hammer Drill/Driver, Socket Ready Impact Driver, Reciprocating Saw and Flashlight HDH181X - Active response technology gives you superior control in bind-up situations to reduce the risk of harmful torque reactions HDH181X - Built tough with Bosch exclusive Durashield housing and all metal gearbox to withstand rugged jobsite conditions IDH182 - All-in-one Impact Driver and Impact Wrench with a 1/4" Quick-change Hex and 1/2" Square Drive chuck for sockets CRS180 - 1-1/8-Inch stroke allows you to remove more material per stroke CFL180 - 7 detents and 360 degree handle rotation allows you to place the light anywhere you want it