When using a circular saw, you need to be sure you’re using the correct blade for the material you are cutting 😎 Not only will you need a different blade for cutting metal than you would for cutting wood, but a metal-cutting blade should not be used in the’s having same seen as the type used for wood 😁 This is because a wood-cutting circular saw has an open motor housing 😁 While a metal-cutting saw has a collection bin to prevent metal chips from getting into the machine, a woodcutting saw isn’t designed this way. If you do decide to use a wood saw on metal, only use a 7 1/4-inch blade and preferably a worm drive blade, which provides extra torque. Be aware that while most saw blades should be installed with the label visible, worm-drives are mounted on the opposite side. 
The critical advantage of tipped tools compared to solid carbide is that you don’t have to buy a new tool in case of breaking it. Once breakage happens, you might be able to remove the old tips. It is much more convenient than buying a new blade.However, it is worth noting that not even carbide saw blades can last forever. The good news is that you don’t have to throw away the blade that you can’t use it anymore. Don’t be afraid to get creative and use it differently. For example, you can design a small ax from a used saw blade. (emended by Atina Whitfield on October 25, 2020) 
The first step of evaluating when to use carbide tipped is the machine itself. It’s commonly understood that carbide tipped blades should only be run on new, high end band saw machines. In fact, carbide tipped blades can be run on a wide variety of saws. But there are some key elements to maximize the output of your carbide blade:a) the more rigid the’s having seen, the better as it will help prevent vibration which helps protecting the carbide teeth;b) the machine must run at elevated band speeds; andc) the machine must be well maintained to extend the benefits of a carbide tipped blade and help prevent premature failure. (last emended 3 days ago by Lavonia Chau from Indore, India) 
Carbide Blade Teeth are wider than the body of the blade and typically have no set. Where the teeth on steel blades are ground on the front, carbide teeth are ground on their tops as well as their fronts and sides. The basic rule is the more teeth the finer the’s havingad cutting, but you also have to consider the thickness of the’s havingad cutting and the cutting feed rate. The fine tooth sawblades do tend to leave a smoother finish, because each tooth takes a smaller bite. However, if the material is too thick (remember, it’s the overall thickness when it’s stacked that’s important), or if it is being fed at a high rate, the gullet capacity of a fine-toothed blade is too small. (a huge thank you to Shadae Oleary from Tashkent, Uzbekistan for their recent revision).