A post hole digger is a cutting tool. You take the digger and cut the ground with ti by driving it into the ground in an entire circle where you want the hole, Once the dirt is cut and loosened you take the softened dirt out of the hole by pushing the handles together driving the diggers into the softened dirt and remove the dirt by pulling the handles apart, holding the dirt in the diggers and liftin the dirt out and putting it in a pile. Then you again cut more dirt as you go deeper and do the same thing and put the dirt in one pile because it needs to go back in the hole to hold the post. It's pretty easy but most people just try to drive it it and then take out the dirt because they think it's soft but it'snot until you cut it all the ways loose.
