What is the quality of the tungsten carbide? Are they made from solid carbide or a carbide blend?
It is constructed from YG6 Tungsten Carbide material, exhibiting greater hardness compared to the standard carbide available in the market. And it not part of the carbide mixture and is made of solid carbide.
What materials can this carbide burr bits be used on? Are they suitable for metal, wood, plastic, and other materials?
It is more recommended to be used in some tough metal applications, such as: mild steel, stainless steel, hardened steel, cast iron. As for wood and plastic, it can be used. But not recommended for use on soft metals such as aluminum and brass.
Did these carbide burr bits compatible with popular rotary tools like Dremel or other brands? What is the shank size?
Yes, EZARC Carbide burr drill bit is compatible with popular brands including Dremel on the market, and its shank size is 1/4 inch.
What safety measures should be observed while using?
Insert the burr shank securely into the collet and clamp it tightly.
Apply light pressure and keep the burr moving, starting with the highest material.
Protect your eyes with at least eye protection, or use a full face shield for better coverage.