Knife Blade Finish
There are several ways to finish a knife blade. The steel itself can be polished, satin finished or even bead blasted.
Bead Blast Finish
Bead blasting provides a textured gray finish to the steel. It is popular in tactical knives because it is less reflective. On the downside, bead blasting collects and holds moisture better than other finishes and, so, can allow the blade to rust more easily.
Coated Finish
Some blades are coated to provide moisture protection or even to improve blade performance.
Polished Finish
Polishing is attractive but expensive. It is a finish used more in the custom knife industry.
Satin Finish
Satin finish is less shiny since the blade has been ground but not polished. This is the least expensive of the popular finishes.
Teflon Coated Finish
Teflon is a popular blade coating which protects blades from corrosion forming moisture and which makes a blade less reflective. Many black blades are coated with Teflon.
Titanium Nitride Coated Finish
Titanium Nitride (TiNi) is an example of a very hard material that is used as a blade coating which can actually help the knife hold an edge better. TiNi is available in several colors.
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