Genuine Makita compression spring — part number 233360-7. A small, steel helical compression spring used in Makita hammer/rotary‑hammer assemblies to restore correct return force and tension where a factory spring is specified. Sold as a single replacement spring and fitted to the internal valve/retainer and return mechanisms found in several Makita hammer and rotary‑hammer models.
Fits examples (for reference): Makita DHR242/DHR243 series, HR2600 / HR2610 / HR2611F, HR2630/HR2631, M8701 and several DHR280/DHR281/DHR282/DHR283 variants — check the parts diagram for your model to confirm position and quantity (typically listed as “Compression Spring 4”, qty 1 in the diagram).
Why this part matters: worn or distorted compression springs can cause sticking, weak return action or inconsistent hammering; this original Makita spring restores the intended mechanical preload so the tool runs smoothly again. The spring is the same factory part number used in Makita parts lists and service diagrams.
Note: verify the part number against your tool’s exploded parts diagram or parts list to confirm fitment before installing.
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