Ive been in the process of modeling a making a material for the is knife for some time now and i just cant seem to make anything look real, i want to make the handle like its made from rubber, and the metal to be covered in a black paint but scratched up out of use. So far I’ve got the above render.
Is this done in cycles?
Sure looks like Cycles to me … the lighting is dull-as-donuts, and that’s why the knife blade (at least) can’t possibly “look real.”
To see what I mean, rig up a large box out of, say, a white bedsheet, and stick a knife and your head inside. (Not in exactly the same place, o’course … 
) What you’ll see is absolutely flat light, just as you see here, and the knife won’t even look metallic. You must have a specular component in order to define the surface properties of anything: the knife blade, the handle.
Now, I can see the details of the modeling here, and those details look good. What doesn’t look good, yet, is the light. You need specularity, and you need color.
I’m way new to the materials thing. (If you want something really difficult, mess with MaPZone.) But I think maybe the rubber needs a higher roughness value on the diffuse node, or less hardness on the specular. Right now it looks more like rough plastic than rubber.