Makita 638862-2 — genuine Makita switch unit / trigger assembly designed to restore reliable on/off and variable-speed control in affected cordless combi drills.
Direct replacement for models such as DF457D, HP457D and HP488D , matching the original mounting points and connector arrangement for a straightforward swap.
The part is supplied as a complete pre-wired trigger/switch assembly with the lock-off mechanism integrated so it installs into the existing housing without modification.
This original Makita switch is listed among Makita parts for the DF457D / HP457D series and is intended to fix intermittent power, no-start, or lost speed-control problems by replacing the faulty trigger assembly.
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