I have used a ton of this stuff. It is available in 2x stock and 4x4s as well. Most use it for decking and some use it for interior flooring. The ends should be sealed with "Anchor Seal" after cuts are made when used outdoors. It turns a silvery gray when not sealed with some kind of water sealer. Its very hard and there are hardness charts on line to see where it stands in comparison to other woods. Check out ipedepot.com
Ive used it for some bullet style needles. The needles came out well and have held up. I sealed with BLO/spirits and had no problems with the seal. I had a nasty skin reaction to the stuff and haven't turned the rest of my stock. The stuff was very hard on tooling.