The Flexovit Metal Cut-Off Wheel 115 x 3.4 x 22mm is a Type 27/42 Reinforced (30 Grit) Standard Brakebacked Diamond Metal Cutting Wheel designed for use with Angle Grinder and Die Grinder Machines. A great choice for removing material from solid surfaces such as wood and metal. This product is designed with aluminium oxide grain, which keeps the grinder cool during use. It also has a depressed centre shape which allows for a lower cutting angle so the angle grinder can get closer to the material.