Answer :
Final answer:
One advantage of using a cut-off grinder is the clean and precise cut it produces, while a disadvantage is the generation of sparks and heat. The primary purpose of a bench grinder is to sharpen or shape metal tools or objects.
Explanation:
One advantage of using a cut-off grinder instead of flame cutting is that it produces a clean and precise cut. The high-speed rotating disk of a cut-off grinder allows for accurate cuts on various materials such as metal, tile, and concrete. Additionally, a cut-off grinder is portable and easy to use, making it a versatile tool for different cutting tasks.
On the other hand, a disadvantage of using a cut-off grinder is the generation of sparks and heat. This can be a safety concern, especially when working in flammable environments. The sparks produced during the cutting process can cause injuries or ignite nearby flammable materials.
The primary purpose of a bench grinder is to sharpen or shape metal tools or objects. It consists of a bench-mounted motor with grinding wheels on both sides. By using the grinding wheels, a bench grinder can remove material from the surface of a metal object, reshape it, or restore its sharpness.
