How do blood grooves improve a sheath knife?

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Many fighting knives have them.

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I think they are designed to let the blood run down your hand and arm after you stab someone to increase your bloodlust and improve your chances for survival. o_O ;)
 
Jack Black said:
In my opinion, 'blood grooves' are hangovers from the days when fullers (which is what they are) were used to lighten swords. There are a lot of myths surrounding them, and I don't think they serve a useful purpose at all.
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I've pretty much figured that the fuller is like the hand saw nib of the knife world.
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both are surrounded by theories and speculation.
I guess you could throw those 2 khukri notches in the mix as well, they might have even more theories surrounding them.
 
Henry Beige said:
Is this true?
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No, far from it.....
The real origin of the "fuller" as found on modern day knives is discussed here in this thread -
www.usmilitariaforum.com

Marbles Gladstone knife

Picked this up today: a Marbles Gladstone knife, 9.74 inches long, with a six-inch blade. I've been looking around online and haven't yet seen anything about dating these. On this forum and elsewhere there are references to the having been used by GI's in WWII. When I first saw this in the sheath...
www.usmilitariaforum.com www.usmilitariaforum.com
 
I had some paragraph written about fullers, but then deleted it when I noticed this thread was from 2015.
 
GaiusJulius said:
I don’t know if it’s true or not because I’ve never stabbed anyone nor do I hope to start. (It is a thread necro but why assume it’s a troll?)

That being said we’re all very squeamish about the idea around here. Example: original Ka-bar drawings call it a blood groove. Yet, most of us would say “blood groove is a pop culture thing beloved of 12 year old boys, as responsible adults we know this feature is called a fuller and is solely for achieving a lighter blade without much reduction in strength.”

Yet it’s been called a blood groove by actual knife designers and military men for a long time, (witness the ka bar document posted above in this thread) so the whole concept is clearly not made up entirely. It is distinctly possible. Really no way to know probably. Most of us won’t have the misfortune to stab someone with a flat ground blade and then stab someone else with a fullered blade and compare performance. Maybe an EMT who has dealt with knife trauma in a hospital could say. The blades in question are generally designed for combat/stabbing however. A ka-bar isn’t a very good hunting knife, carving knife, kitchen knife, or letter opener.
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The kabar is a killing knife period. It's designed "with the help of the grooves" to quickly deliver blows that leave wounds that are like holes instead of smooth straight wounds. Smooth straight wounds will just about close up on their own stopping any significant loss of blood. The holes left by kabars cause massive blood loss that's nearly impossible to stop before being fatal. It's literally like putting a drain on somebody. Even without hitting any vitals a person would quickly be unable to fight. Then followed closely go into cardiac arrest and die.
 
arod8 said:
The kabar is a killing knife period. It's designed "with the help of the grooves" to quickly deliver blows that leave wounds that are like holes instead of smooth straight wounds. Smooth straight wounds will just about close up on their own stopping any significant loss of blood. The holes left by kabars cause massive blood loss that's nearly impossible to stop before being fatal. It's literally like putting a drain on somebody. Even without hitting any vitals a person would quickly be unable to fight. Then followed closely go into cardiac arrest and die.
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I'm not crazy I'm southern. What most the country would consider tactical training we simply call hanging out on a weekend
 
The kabar is a killing knife period. It's designed "with the help of the grooves" to quickly deliver blows that leave wounds that are like holes instead of smooth straight wounds. Smooth straight wounds will just about close up on their own stopping any significant loss of blood. The holes left by kabars cause massive blood loss that's nearly impossible to stop before being fatal. It's literally like putting a drain on somebody. Even without hitting any vitals a person would quickly be unable to fight. Then followed closely go into cardiac arrest and die
arod8 said:
It's absolutely true. I call Democrat post
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