How to make a drawknife? (Both for metal and wood)

[JZknives]

So I was reading a book on Japanese sword making and found that they have a tool similar to a drawknife but for shaving flats onto the metal.

Does anybody know what kind of steel would be used to make this? Would there be any other things to take in mind?

If I was going to make another one for wood would I need to change the steel to something else than the metal one?

 

[Stacy E. Apelt - Bladesmith]

Don Fogg is the master of the sen. He has several tutorials. Some of the old ones are gone, but I think it can still be found somewhere.
Here is the shap of the cutting edge;
http://www.swordforum.com/forums/attachment.php?attachmentid=33436&d=1107890937

 

[Don Hanson III]

Any high heat treated high carbon steel will work. You'll be cutting soft steel before HTing.

Yes, Don Fogg is the man. Too bad his site is gone.

 

[Salem Straub]

Here's Don's archived site-

http://web.archive.org/web/20050412022722/http://www.dfoggknives.com/copy_of_index/index.htm

And here's the sen page from that.

http://web.archive.org/web/20050412...x/sword.htm#Making and using a sen or scraper

 

[GHEzell]

One made for cutting wood will not work well on steel, and one made for cutting steel will not work well on wood... the desired edge bevels are vastly different. The steel could be the same. When I make a blade for cutting steel, I barely temper it, more of a stress-relief really. I suspect you would want a wood cutting tool to be properly tempered, as the thinner edge would be prone to chipping.