Original Makita 458845-4 — Chuck Cover. Precision replacement for the front tool‑holder cover (exploded‑view position 004) on Makita 18 mm combination hammers; listed as the direct replacement for model DHR182.
This cover is the part that locates over the chuck area and interfaces with the retaining ring (S‑17), ring 21 and the two 7.0 mm steel balls shown in the parts diagram—so a correct 458845‑4 restores proper chuck seating and the original fitment at the front end.
Chuck Cover is listed for Model : DHR182ZJ and HR010G under Makita parts diagrams.
Supplied as the original Makita numbered cover for straightforward replacement — ideal when you need a single, accurate part to repair the front end of the tool and keep working with confidence when buying parts for power tools.
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