Helpful tips

What is the purpose of a blood groove?

What is the purpose of a blood groove?

The blood groove is called a fuller and is used to lighten the blade some what but serves a secondary purpose. It the knife is stabbed into the lungs it helps to cause collapse of the lungs by admitting air into the plural cavity.

What is the groove in a knife blade for?

A fuller is a rounded or beveled longitudinal groove or slot along the flat side of a blade (e.g., a sword, knife, or bayonet) that is made using a blacksmithing tool called a spring swage or, like the groove, a fuller. A fuller is often used to widen a blade. This effect lessens as the blade is reduced in length.

Why is a fuller called a blood groove?

Basically, the idea is that the so-called ‘blood groove’ is there to aid withdrawing the blade from a person (or animal). In this scenario, it is said that the person’s muscles contract around the blade, which causes a vacuum, making the blade difficult to remove.

What’s the blood groove?

Also known as a fuller and blood gutters, blood grooves are a long and narrow indention that run the length of the katana through the middle of the blade. You can easily tell if a katana has blood grooves by inspecting the blade. The blood grooves are a single indention where the steel dips down in the middle.

Why do knives have dimples?

Function. Some cooking knives have dimples, also known as a granton edge, to assist the chef. The dimples are small, shallow indentations across the knife face near the cutting edge. These are intended to reduce suction when the blade is cut into a food item and to make it easier to pull the blade out again.

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Why do some swords have holes in them?

It’s been done on swords intended for real use – the blade can still be strong enough. Usually, the holes are small (so that the blade is still strong enough). As well as blades with holes in them, there are also blades with brass plugs in them – holes, filled with brass.

Does a blood groove weaken the blade?

If a katana, daito, iaito, or medieval sword has a bo-hi (fuller, blood groove) it actually makes the blade less likely to flex. So, basically, yes, it makes it stronger. But, on a bokken it will weaken it.

Why does a Santoku knife have grooves?

These depressions, called kullenschliff or a Granton edge, reduce friction and help prevent food from sticking to the blade. As a result of the santoku’s popularity, manufacturers have started adding the dimpled edge to other knives, too. For slicing other foods, it perhaps has a subtle advantage over regular knives.

Where is Katanasforsale located?

If you are looking for a solid and not excessively expensive Japanese or Chinese sword; buy from Katanasforsale (KFS). Many emails with KFS has informed provided contact information as Rm 1905 Nam Wo Hong BLDG 148, Wian Lok ST Sheung Wan, Hong Kong HK 50210, HONG KONG and the swords being made in Longquan China.