Steel Niolox 4,4mm (0.17'').
Total length of 23,5 cm (9,25'''). Length blade 12 cm (4,7'').
Handle epoxy resin and metal foil (TechStab 3D).
Mosaic pins and spacer.
Thanks guys about your beautiful words.
Some member want know where is site to buy this handle material.
I have no problem, this is the site http://www.woodstab.com/