Diving Knife Size: SE Double Edge Blade
The SE Double Edge Blade is 9 inches long and has a blade size of 4 ½ inches. This double edge knife is made of stainless steel to prevent rusting. This also enables the blade to withstand regular use.
The knife handle is black and yellow. While the handle is durable, it is not hard on the hands. It is designed to be easy to use underwater. It comes with a thick sheath with straps.
The sheath is rigid so it does not break easily. The blade is sharp and can be re-sharpened if needed. One side of the knife is smooth and the other is serrated.
Diving Knife Size: Blue Navy Seal
The Blue Navy Seal diving knife measures 11 ¾ inches x 2 inches. When placed in the sheath, the knife is 13 inches (33 cm) long. The blade is 6 inches (153 mm) long. The handle is large so it can be held easily with your hand.
The blade is stainless steel and is resistant to rust. The sheath is made of plastic and designed to fit the knife in comfortably. The sheath has loops. A Velcro strap keeps the knife in place on the sheath. As it is made for underwater use, it has a solid feel to it. The construction makes the knife suitable for long term use underwater.
Diving Knife Size: U.S. Divers
The U.S. Divers titanium knife is 9-1/2 inches long overall. The blade is 5 inches long. The blade is titanium and has a robust one piece tang. There is a serrated edge on the top of the blade. This is for cutting and slicing rough material.
There is also a cutter near the bottom, just near the blade. The U.S. Diver’s knife can be disassembled, so it can be cleaned easily. The sheath has a quick release feature and comes with rubber leg straps. There is a stainless butt cap. The knife handle has a lanyard hole. The handle has a gray color.
Diving Knife Size: Razor Back
The Razor Back Steel Diiver’s knife is 8 5/8 inches long. The blade is made from 420 stainless steel and comes with serrations. The sheath is made from plastic, but can withstand impact underwater.
The sheath can be hooked to your ankle, putting it within easy reach. The knife is built for use when scuba diving, snorkeling and underwater exploration. The knife is also light, so it does not become a burden to carry underwater. The knife has also been designed to be easy to clean up after being used underwater.
If you like to scuba diving regularly, the diving knife size and its durability will be extremely vital. You should also check the sheath quality. A poorly made sheath will last only a few sessions underwater before it breaks down.