ADHD is described as having difficulty with:
* paying attention
* listening closely
* following instructions
* organizing tasks in the workplace
* keeping track of physical objects
These are all things you need to do in a metal and woodshop!
Have you never sat down and talked to someone with ADHD describe their basic experiences? I know people with ADHD who literally need all of their things hung up on display on a wall or else they lose them. There is an extremely popular guide for organizing with ADHD that recommends tearing cabinet doors off cabinets because it's impossible to remember where things are once put away.
Here's a popular podcaster talking about having ADHD and needing accommodations, and goes deeply into his experiences with having ADHD and struggling to, for example, go to work on time because there are too many tasks to keep track of to go to work: https://www.youtube.com/watch?v=ToBxaBauF4M