Original Makita compression spring, part number 233072-2 — sold as "Compression Spring 8" and used as the return/lock spring in the spindle‑lock/pin cap assembly on Makita grinders and related tools. It’s a small, tightly wound coil designed to sit over the lock pin (works with the matching pin cap) and provide the positive return for the wheel‑lock mechanism — a simple, precise replacement when the lock feels loose or the pin won’t spring back.
Example models that list this part include several popular Makita angle grinders and similar tools — for example: 9523NB, 9524NB, 9526PB, 9527PB/9528PB series and the 9564/9565/9566 (CV) angle grinders, as well as other Makita grinders and small power tools that use the same pin‑and‑cap lock assembly. Confirm against your tool’s parts diagram or model breakdown to be sure.
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