Set with EZ SpeedClic accessories. EZ SpeedClic accessories for tool-free assembly. Cutting discs for cutting metal and drywall materials. 3.2 mm shank diameter, cutting discs with a working diameter of 38 mm. Contents: mandrel and two cutting discs. The starter set SC406 is part of Dremel's EZ SpeedClic quick change system. The set includes an EZ SpeedClic mandrel and two fiberglass-reinforced discs for cutting metal. The cutting discs can be easily mounted without tools and can cut metal pipes, sheet metal, drywall panels, soft and precious metals, as well as cast iron.