

Gillette decided to go in a new direction
'One blade for superior...eh, um...I'm not doing this, I'm out'

as the following source of information indicates.
japanesesamuraiswords.com/
\pedant
( ,
Thu 20 Nov 2003, 16:19,
archived)
japanesesamuraiswords.com/
\pedant

onebladedswordwieldingjapanesesamurai.com/
if only it were real
( ,
Thu 20 Nov 2003, 16:21,
archived)
if only it were real

EDIT - I am wrong, it is different.
Classifications of swords by length
Japanese use the shaku to measure the length of the cutting edge of the samurai swords. 1 shaku = 11.903542 inches.
1. Long Sword (Daito): over 2 shaku in length; there are the longer of the two swords commonly worn by the samurai; difficult to temper a daito because of its length.
2. Medium Sword (Wakizashi): 1~2 shaku in length; worn by samurai as auxiliary sword, or by non-samurai, who were allowed to wear no more than one sword of this length.
3. Short Sword (Tanto): less than 1 shaku in length; the shorter of the two swords worn by the samurai as auxiliary swords. Women and tradesmen used them as protective weapons. Commonly called as hara-kiri knives. They are usually the hira-zukuri (without ridgeline) types.
( ,
Thu 20 Nov 2003, 16:22,
archived)
Classifications of swords by length
Japanese use the shaku to measure the length of the cutting edge of the samurai swords. 1 shaku = 11.903542 inches.
1. Long Sword (Daito): over 2 shaku in length; there are the longer of the two swords commonly worn by the samurai; difficult to temper a daito because of its length.
2. Medium Sword (Wakizashi): 1~2 shaku in length; worn by samurai as auxiliary sword, or by non-samurai, who were allowed to wear no more than one sword of this length.
3. Short Sword (Tanto): less than 1 shaku in length; the shorter of the two swords worn by the samurai as auxiliary swords. Women and tradesmen used them as protective weapons. Commonly called as hara-kiri knives. They are usually the hira-zukuri (without ridgeline) types.

is a knife used by samurai of about 6 inches
EDIT: That's the ones!
Katana - main sword
Wakiwakiwakaday + tanto, auxiliary swords!
( ,
Thu 20 Nov 2003, 16:24,
archived)
EDIT: That's the ones!
Katana - main sword
Wakiwakiwakaday + tanto, auxiliary swords!