The Festool USB 50/35/Bi/OSC/5 is perfect for professional and DIY use alike. These blades are made of high-grade bimetal meaning they are extremely durable and robust therefore ready for any job. As they are universal these blades can be used for processing a wide range of materials, including but not limited to - wood, painted wood, composite materials, GRP, plasterboard, non-ferrous metals and plastics. It has a future proof 'cake tin' pattern design giving it a more secure three-dimensional connection, providing maximum precision, stability and performance. This is a pack of 5.