| Category | Channel | Comment |
| Welding | ChuckE2009 | Knows his stuff. Good info on various types of rods and videos of welding puddle showing techniques. |
| Metal Machine Shop | ThatLazyMachinist | Knows his stuff (and he should as an ex-teacher). Machine shop lessons and various metal working projects. |
| Metal Machine Shop | Mrpete222/Tubal Cain | Editor of some of the ever popular Workshop Practice Series books. |
| Metal Machine Shop | This Old Tony | Unique presentation skills of various tips and projects. |
| Metal Gadget Prototyping | Dan Gelbart | Some really good techniques on achieving precision and prototyping. |
| Woodworking | Matthias Wandel | King of wood gears. Makes machines and stuff out of wood. |