[NCPaladin]

I have made some tools with HSS from blanks but the longest I have ever found was 8”.

Where can you order 3 foot segments?

Even the ½ square 8” long from WT Tools or Enco runs $16-$20. Of course smaller stock like the ¼” is much less $$$ and varies between standard HSS, w 5% cobalt, or w 10% cobalt. Smaller sizes that I found were still 8” length max with some sizes only 4” or 6”.

It can be ground just like a store-bought tool but I don’t know about drilling or other forming. It may take a carbide bit for that.

 

[NCPaladin]

I thought you were looking for HHS in 3' lengths, I know of none.

I go to Speedy Metals. http://www.speedymetals.com/

They carry lots of different steels (not HSS) and told me A2 or D2 was best. On the "more info" for each type it gives you data about machinablity, welding, heating treating, etc.

If you phone them they may be able to guide you to what will work best for you. In just the Tool Steel, Round, they carry six different steels.