-Blade :
L : 697mm (2shaku, 3sun ) , w : 31mm , t : 6.4mm , weight : 895g

-Shape (sugata )
:shinogi-zukuri, ihori mune, koshi sori (20mm) with fumbari

-Structure :
 maru carbon steel  «Y2/70 » (C 0.7%, Mn 0.3% , Si 0.3% )

 -Heat treating :
annealing , thermal cycling ( to decrease steel grain ), water quenched with clay coat to obtain shugua hamon
   
 - Polishing :
First, after smiting (shiage) : rough grinding and filing ( special low-speed angle-grinder with home-made wheels, planes and steel files )
 Polishing after quenching :
-adjustment of the curvature and the straightness of the blade, then ,
-rough polishing( special low-speed angle-grinder with home-made wheels) .
 - fine polishing with wet grinding papers stuck on hard wood slats
 - Japanese stones: uchigumori, ha zuya, ji zuya. nugui.
 -shinogiji and mune, hand polished


-Tsuba :
 rough iron  (van Uuyis )
 copper Seppa and brass habaki ( van Uuyis) 

-Tsuka :
Oak,natural same (Japan) , copper atome , brass mekugi, menuki: brass “Shishi”( van Uuyis ), fushi/kachira: rough iron (van Uuyis ), tsukaito: silk (Japan )
 
Total weight : 1265g    gravity center : 145mm from the tsuba


 -Saya :
   Epoxy varnished Linden tree.
 Koiguchi, kojiri, kurikata : rough iron (van Uuyis )
 
  Sageo; silk ”nakafuji”, bukuro and fusahimo ( Japan )

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