638845-2 supersedes older part numbers: 638728-6
Original Makita brush-holder assembly (part 638845-2) — direct replacement designed to secure the carbon brushes and restore reliable electrical contact and brush alignment. This complete brush-holder accepts the CB‑440 style carbon brushes (Makita part 194427-5) and is fitted in the motor end of the unit; it uses a pan‑head M3 × 10 mounting screw (Makita part 911013-5).
Compatibility: fits Makita cordless drill/driver and hammer-driver series including BDF446, BDF456, BHP446, BHP456, DDF446, DDF456, DHP446 and DHP456 (listed as BRUSH HOLDER COMPLETE for these models). Use this original Makita brush-holder to replace a cracked, loose, or electrically unreliable holder so your tool accepts the correct CB‑440 brushes and runs smoothly again.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita drill parts. Makita hammer drill parts.
