DCD996 in the cordless drill combo kit has a DEWALT high power high efficiency brushless motor that delivers more runtime vs. brushed motors. It also has a heavy-duty 1/2" ratcheting metal chuck with carbide inserts for superior bit gripping strength.DCF887 in the cordless tools combo kit has a DEWALT built brushless motor for longer run time and has 3-speed settings for versatility with Precision Drive for added controlDCL040 in the drill/ impact driver combo kit is a bright flashlight to illuminate your work area with LED output of 110 lumens.DCS367 has a variable speed trigger with 0-2900 SPM and a lever action 4 position blade clamp.