As a "hobbiest", you probably can not buy liability insurance, because of the definition of being a "hobbiest". That means you'll have to set up a business! If you sell to others in your state you'll need a sales tax permit. You'll get to file federal and state taxes as a business. Sounds like fun now! Now, if you're going to make bolts you'll be in competition with PT&G and at least one other company, can't recall their name at the moment. They've already done the R & D and produce custom diameter, centerless ground bolts for manufacturers and gunsmiths along with many other items for the shooting sports. They've got lots of different options for extractors, many of the components they make themselves, and alot of fluting options, too. They're constantly expanding their product line. You have CNC equipment in your shop? Most of PT&Gs' equipment is. They can sell 'um for $100-$200. Like most good sized manufactures, they probably buy their material by the semi truck load (44,000lbs.) That's where the 'good' price is at, by the truck load! Of course, you could always try to "fly under the radar", but you've pretty much blown that by posting on the web! I don't know about you, but, I try to avoid 'serious' conversations with the tax man (state, federal, or local), zoning offficals, lawyers and others of that like. There are many serious considerations to think about with what you have suggested. In your last post you suggested "working on a persons firearm". That means getting a FFL. There's another "agency" to keep happy. Just getting approved means you've got to comply with local zoning and supply a copy of you're application to local law enforement, so they'll know you're there. That means "business property taxes". It goes on and on.
