Makita 424133-1 Spare Part - BRAKE PIN BFS440/450
Original Makita brake pin — part no. 424133-1. This small, precision-made pin is the brake/stop pin used inside the brake assembly of Makita cordless drywall screwdrivers. It secures the brake components and provides the positive engagement needed for the tool to stop the spindle when the trigger is released, so replacing a worn or bent pin restores proper braking action.
Compatibility: fits Makita BFS440 and the BFS450 family (including BFS450, BFS450Z and BFS450H2) — it’s listed as the brake pin (item 3) in the BFS450 parts diagram and appears on BFS440/BFS450 parts listings.
What you get and a quick install note: one original Makita replacement brake pin (424133-1). The part installs into the brake/locator area shown in the tool’s exploded view — a straightforward swap if you can access the housing and follow the parts diagram; it’s the small pin that the brake ring/leaf spring engages. Refer to the parts diagram for orientation and correct reassembly.
Order this original Makita 424133-1 when the brake pin on your BFS440/BFS450-series screwdriver is bent, worn, or missing to restore safe, reliable stopping performance.
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Compatible models this part will fit:
