I have some really nice wood to use for knife scales. Some is exotic and some is from the United States Osage Orange (very hard) This wood is the hardest of the list. Purple heart is very hard also. Elm (hard) Walnut, Rosewood (hard) Birch, hard rock Maple is hard and silver leaf maple. Sycamore, Black locust hard.
All wood has been dried for years and ready to use. Tell me the size you need and I'll have it ready