I build furniture and while I do my design work digitally for remote clients, I do my shop drawings by hand. One super helpful tip I got from an actual trained draftsman is to use harder pencil lead for your layout and construction lines. Like 6H to 9H. You'll get a much lighter line to erase later. It'll also hold a finer point for longer. I prefer lead holders to wooden pencils. They take 2mm lead, and you sharpen…
Finding tools that clicked was a nice process to discover. I also tried harder leads and like them for the reasons you mention - but for whatever reason, kept coming back to a basic BIC mechanical pencil. An eraser shield is a good addition to the tools list - that came in handy often. Love the tracing paper tip - that’d be helpful to remove the digital aspect of taking a picture a digitally sketching on top.
I like the basic Pentel P205/207/209 pencils, but the basically disposable plastic Bics would probably be well suited to the short, brutal life they'd lead in the shop.
Loved the article and the joy of the process. The outcome is spectacular and shows the care that went into it.