5X PAIRS ( 10 Total ) - Replacement Carbon Brushes Compatible For dewalt Grinder Motor Brush Set ( 650916-01) D28 000 This part replaces obsolete part #: 650916-01 and 636128-01 This part is compatible with the following machines: Fits the following models: : D28402, D28110, D28112, .D28401N,D28803,D28065,D28117,D28116,DWE4615 & More! It is always best to replace both brushes, even if only one is worn.. Worn brushes frequently are the cause behind a motor running poorly.. Replacing brushes can fix a motor that's operating intermittently.. New brushes can restore a motor's electric braking.. When replacing carbon brushes, be sure to inspect your armature for burns, cracks, or other damage which can indicate larger motor problems..