... Grinding Wheel/Abrasive disc, grinding, Dia. 4.5 In., Thickness 1/4 In., Arbor Size 7/8 In., ... RPM 16,616, For Use With Angle Grinder, Fast Metal grindting.For grinding metal,sainless steel,stone,etc ... .For Use With Angle Grinder, Fast Metal grinding.Item NO.: DA115-6-4Item #DA115 ... -6-4Wheel TypeGrindingDia.4.5 In.Thickness1/4 In.Arbor Size7/8 In.Abrasive MaterialAluminum ...