This really depends on how often you are using it, and what you are using them for.
Typically though, you would probably sharpen it once a month with "regular" use.
Diamond coated saw blades.
Black oxide drill bits are coated with a black oxide finish that provides some corrosion resistance and lubrication, but they are not as durable as titanium-coated drill bits. Titanium-coated drill bits have a harder surface that increases their durability and heat resistance, making them better suited for drilling through harder materials. In terms of performance, titanium-coated drill bits generally last longer and provide better results when drilling into tough materials compared to black oxide drill bits.
All you gotta do is just get a nail file and sharpen your teeth i prefer sharpening with a diamond coated nail file, and using the teeth outside your middle teeth =)
Those types of blades and bits are mainly for cutting tiles and stone.
Drill bits are made of steel, and often coated with titanium or cobalt.
Use a wheel specifically rated for grinding concrete or ceramic tile. It doesn't have to be a diamond wheel; titanium-coated, tungsten-coated or carbide coated wheels will also work.
Coated carbide is the best. Uncoated is next.
Hss drill bits, Titanium coated drill bits and brad point drill bits.
Drill bits can be made from steel which is a mxture compriing mainly of iron. Many drill bits are coated with a very hard yellowish chemical compound titanium carbide. (made of titanium and carbon)
Black oxide drill bits are coated with a black oxide finish to reduce friction and heat during drilling, which can improve performance and durability. Titanium drill bits, on the other hand, are coated with titanium nitride to increase hardness and resistance to wear, making them more durable and longer-lasting than black oxide drill bits. Overall, titanium drill bits tend to outperform black oxide drill bits in terms of both performance and durability.
The skate blades are typically made of tempered carbon steel, coated with a high-quality chrome.
Julien Laffargue has written: 'Assessment of the fracture strength of individual Titanium matrix coated monofilament silicon carbide fibres'