The Makita 1919789 (CB-318) is a genuine OEM carbon brush set, supplied as a pair, essential for maintaining optimal performance in various Makita power tools. These wear items are crucial for consistent motor function, electric braking, and power delivery. Each brush measures 6.5mm x 11mm x 28mm. Replacing both brushes simultaneously ensures efficient motor operation and even wear. Compatible with Makita HR2470, HR2470F, HR2470T, HR2475, and other related models.