Wheel Diameter: 9"Material: SteelFits All 9" Large Angle GrindersDust Collection Reduces Clean-Up Time And Provides Cleaner, Safer Air For UserLarge, Durable Foot Plate Greatly Increases Stability During Use For Clean And Accurate CutsSingle Screw Depth Adjustment Quickly Adjusts And Maintains Desired Depth Of CutBosch AIRSWEEP Vacuum Compatible, Plug And Play Without Using Any Adapters