Interesting.
I thought that tooling up high volume plastic parts took months.
its largely metal look at the images
Not necessarily, if you have the gear for rapid prototyping including 3D metal printing, you can crank out a few molds fairly fast as well as simpler metal parts. Anything up to and including a 1911.
Now, if you want to go into really high volume high speed production, yes, you will have to get dies, molds, etc., purpose made the old fashioned way or at least use CNC machining.
Should also be pointed out that he is probably reusing a lot of pre-existing parts from his vacuum cleaners and blower systems.
Yup. It ain’t like making a pizza. Design, engineering, stamping and extrusion dies, production assembly, and distribution channels.
That in the usual course of business. You'd be surprised at what can be done when you drop everything else and focus on one priority.
Some HUGE tools might take longer, but most toolrooms and molding operations have raw material or things that can be sacrified and converted. Dies for this sort of part could probably be ready for first trial in 48 hours.
Where Iwork it takes 18 months from concept to available to sell.