The Makita 9" Dust Extraction Cutting Guard is designed to work with Makita 9" Angle Grinders (models GA9040S, GA9031Y, GA9060, all sold separately). This full-featured sawing guard is engineered for precision cutting and maximum dust extraction when used with a vacuum (sold separately). The plunge action allows for maximum dust containment while making a cut. The adjustable depth are engineered for quick depth adjustments, with a clear viewing window for improved visibility. Added features include a rounded base plate lead edge with rollers for smooth travel while cutting, and an adjustable guide that is easy to see for increased cutting accuracy.