Genuine Makita Brushes
These are Genuine Makita Ga7021 brushes. These are not the cheap knock off brand. These are the actual Makita factory-direct brush replacements. You can find cheap replacements elsewhere, but they will last like cheap replacements. These are the most common fail part in your grinders. These brushes come Direct from Japan Makita. Also consider maintaining the heads of your grinders with Magnum Moly grease.