Dremel is a hardware tool company that specializes in rotary and osculating power cutting tools. Each tool is manufactured to be compatible with a wide variety of bits with different cutting edges.
Dremel rotary tools make attachments for several different purposes including cutting and grinding, cleaning and polishing as well as carving and engraving. The use of the Dremel tool will determine what the cutting edge is made from. You can find rip cross cut blades for large cuts and diamond blades for fine cuts.
Dremel Oscillating tools are also broken down into use categories such as cutting, grinding, sanding and grout removal. The cutting edge of the Oscillating tool is designed for its use. There are blades specific for dry wall use as well as wood and metal.
The Dremel Versa tip is a special line of Dremel cutting pieces. The tip actually heats up as you use it, allowing you to create finite decorative patterns on materials like wood and leather. They come in a variety of shapes and sizes to suit multiple purposes.