Cut Big Rounds of Firewood Fast and Easy, No wasted Energy and you do not have to use a Giant maul that is heavy! Just Tap, Tap, Tap and the wood will split Quick and Easy. Practical tip that is not taught in school, no they teach great things that you will use all your life...Like...the history of paper clips!! Anyways simple no machines just avoid the knots on both sides and Tap, Tap, Tap.