McMaster 4896A75 Wheel Brush for Angle Grinders 4" Diameter with M10 x 1.25 Threaded Arbor 1AFC0 Finish: black oxide Finish: black oxide 11 Pipe Fitting Connection Type Male NPT x Female NPT Pipe Fitting Schedule Class Class 3000 Connection Type Threaded Pressure Level High Pressure (1000 3000 psi) Class Pressure Class 3000 Fitting Side A Type NPT Includes Seal No Pipe Fitting Material & Grade 316 Stainless Steel Fitting Side A Gender Male Material Grade 316 Fitting Shape Bushing Pipe Fitting Gender Male Female Class Class 3000 Fitting Side B Gender Female Fitting Side B Pipe Threading 11 1 2 Gender Female Mount Type 224 SVHC) Compliant