DeWALT Tools has o new 20V Max Impact Driver that you’ve never heard of, it’s the 20V MAX 1/4 IN. BRUSHLESS CORDLESS IMPACT DRIVER (DCF840B). We unbox this newest impact Driver from Dewalt, then compare specifications to the dewalt DCF887, as well as the very new ATOMIC 20V MAX 1/4 IN. BRUSHLESS CORDLESS 3-SPEED IMPACT