Description
Overview:
This Brush Holder Comp is a genuine Makita OEM assembly for selected cordless driver and combi drills, including BDF456 and BDF446. It houses the carbon brushes and maintains consistent electrical contact with the motor's commutator, helping to restore smooth power delivery and reduce arcing caused by worn holders. The unit features a robust moulded plastic carrier with copper-alloy contacts and steel springs for stable brush pressure. Designed to fit precisely within the drill's motor housing, it provides a reliable, like-for-like replacement that supports tool performance and lifespan. Supplied under Manufacturer Part Number 638845-2, it integrates cleanly with the original wiring layout, making it a practical service part for professional maintenance or DIY repairs where the drill shows intermittent power or excessive sparking.
Key Features:
- Genuine Makita part (MPN: 638845-2) for assured fit and function
- Maintains firm, reliable brush-to-commutator contact to stabilise power
- Durable moulded body with quality metal terminals and coil springs
- Helps reduce sparking and overheating caused by worn holders
- Supports efficient motor performance and extends service life of the drill
- Direct-fit replacement to match original layout and clearances
- Suitable for routine servicing during brush changes or motor overhauls
- Simple to fit with standard hand tools; minimal downtime
Typical Applications:
Used during servicing of Makita cordless drills when replacing carbon brushes or addressing symptoms such as intermittent power, visible sparking, or fluctuating speed. Ideal for keeping site tools dependable on construction, fit-out, and maintenance jobs, as well as in home and garden projects. A sound choice for preventative maintenance on high‐use drills to preserve performance and reduce unplanned stoppages.
Also known as:
Motor brush carrier, brush cage, commutator brush holder, electric drill brush mount, brush block, armature brush holder. These terms refer to the same assembly that secures the carbon brushes and ensures consistent electrical contact within the drill's motor.
Fits Models:
BDF446, BDF456, BHP446, BHP456, DDF446RFE, DDF446Z, DDF456RFE, DHP446RFE, DHP456RFE, DHP456RMJ
Alternate Part Numbers:
6388452
Product Specifications
| L&S Part No. | 638845-2 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 638845-2 |
| Unit of Sale | 1 |
| Applications | BDF446, BDF456, BHP446, BHP456, DDF446RFE, DDF446Z, DDF456RFE, DHP446RFE, DHP456RFE, DHP456RMJ |
| Machine Type | Drills |
| Fits Brands | Makita |
| Fits Models | BDF446 | BDF456 | BHP446 | BHP456 | DHP446RFE | DHP456RFE | DHP456RMJ | DDF446RFE | DDF446Z | DDF456RFE |
