I noticed there was no guard on the tool used to cut the culvert pipe. Those things turn super fast and if the cutting disc should bind and shatter, you could lose a few fingers! Personally, I would not like to take that risk. The guards are sometimes a pain, but preferable to serious injury. One thing I was taught long ago was that power tools are out to hurt you, so ALWAYS think SAFETY when using them! For things like that, sturdy leather gloves along with a guard and a face-shield are mandatory equipment. Stay safe. Stay healthy. You only have one body.