As I wrap up another year of teaching high school wood shop I'm reflecting on how much maintenance I have to put into my tools, not just at the end of the year, but all year long. I wonder if there is a harsher environment for wood shop tools to live in. Our wood shop classes are popular, and we have 7 periods of 18 students per day, and over the course of a year each student makes an Adirondack chair, a folding stool, a cutting board, a mitered box, a top, a pen or duck call, a CNC plaque, and more. I feel like I could be a product testing lab since our tools are treated so badly. 1) Kids don't know righty-tighty lefty-loosey and they strip everything. Handles get it the worst, but anything with threads on it has its fate sealed already. Oh, the blade tilt won't move either way? Well pick one and crank it! I have a line of kids at the table saw, and every one of them needs a different blade height or angle, and those handles get turned all day long.…