Buildalot Specialty Carbon Brushes ca-15-14347 for DeWalt DW821-0.25x0.31x0.53'' - With Automatic Stop, Cable and Spring - Replaces original parts 1003868-00, 930151-00, 930897-00 & 939539-01 - - Amazon.com
Amazon.com: DeWalt DW818/DW821 Grinder Replacement Brush Set of 2 # 939539-00-2pk : Tools & Home Improvement
Dewalt Dw821 Small Angle Grinder (Type 5) Spare Parts Spare Parts | Tools And Parts Direct