Object shaped "U" which one end is shorter than the other on average is made of metal, some are made from a mixture of aluminum or copper that easily bent (at the limit a particular strength eye of the hook is bent) and others who made of hardened steel, and even some eye of the hook has been sharpened by chemical perfect cutting.
Surely the factory, had the intention why the eye of the hook is made soft, and some made hard. Do not be wrong in buying eye of the hook, usually for beginners that do not understand will buy randomly in several sizes, and if you note the eye of the hook that used in fishing grounds particular, often do not precise, consequently can certainly be estimated namely "failed" or fish escape while being strike already occurs.
Hooks from material-hard (steel) or other metals are suitable in places that are craggy and more secure to use eye hook with holes for ties strings. Actually hook flat, specifically used for fishing tackle fish are not toothed (or teeth smooth)
Here some kind of hook to know:
Double points with long handle (long shanks)
These hooks have purposely made long handle, to cope with sharp teeth predator fish such as barracuda, dog-tooth tuna etc.. Even if these hooks have a long handle, but still encouraged or stringed use a leader line drive, which direct contact with the teeth a few cm long fish well with wire or thread nikelin of PE. This hook is specifically designed to subdue the fish have teeth clench reach fishing lines, if you use the fishing rod handle normal eyes / short.
Sliced-Shanks
This type of fishing hook has two thorns (or more) on the fishing rod trunk, thorn serves for stronger grip, while fish hit the this fishing hook, and the fish will not be easy to miss. These hooks which best used for non-toothed fish, and flesh around the mouth soft enough, like grouper, gurisi, yellow tail etc..
