1. The discs are super-thin making them perfect for making slots and and coated on both sides as well as around the edge 2. Diamond burrs Excellent for fine detail work, cutting, engraving, carving, touch-up and finishing,Work on glass, metal , stone, ceramic, wood, plastic 3. Processing of metallic and Non-metallic surfaces using an engraving machine or mini-Drill forms of cutting part provide efficient processing of materials 4. Compatible with most of rotary tools (For / Menards Roto/ , Etc) used in hardware, hobby, home, etc<br><br>Type:Engraving Accessories Set colour:Silver Material:High speed steel + diamond<br><br>Package Contents: 6 x circular saw (22mm, 25mm, 32mm, 35mm, 44mm, 50mm) 30 x diamond sharpening pin 6 x rotary file 1 x connecting shaft 2 x chuck<br><br>Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.