This is a mod made for those who are boredof chopping wood, or other wise to get easement.
With Treecapitator 1.7.2 and 1.7.10 you can avoid the steps of cutting the trees block by block. Tthe mod just works when you break the first wood block, making the entire rest of the tree wood falling at your feet.

Detail and Download here : Treecapitator Mod

Homepage: Mods for Minecraft