The principals of operation are the same in that a driver blade is pushed down onto a spinning flywheel, the energy converts to the driver blade and shoots it forward driving the nail into the material. The DCN690 Cordless Nailer,however, features a vastly more innovative method of doing this with a brushless motor at it's core. It benefits heavily in efficiency as a result, enabling the tool to drive a 90mm ring shank nail in soft woods and over 600 nails to a charge.