I wouldn't tell that to someone who doesn't who doesn't know much about tools. Most of the tap and die sets I see at garage sales are made in Japan probably from the 80s or 90s and are absolute garbage. They were sold and priced like what Harbor Freight is today.

It's probably bifl, but it I wouldn't say it is the cheapest bifl razor. IMO any razor that cost more than $20 is probably bifl. There are adjustable razors which let you adjust the blade gap. You start small and work your way up until you are happy, then stay there forever. That to me seems better than spending $70 on something that might be too aggressive and you are stuck with.

I'm skeptical of companies who advertise titanium this and "Aircraft Grade Aluminum" that. Just say it is neat because exotic material, don't try to justify the high prices with it is "30% lighter and 30% stronger".

What you want depends on what you are spraying and how much volume. Search Mcmaster carr for the types of sprayers available. Then use the terms to search for who makes it or where else it is sold so you don't have to buy from mcmaster if you don't want to.