Genuine Makita 450774-7 — Lock Sleeve (LOCK SLEEVE). Designed as the replacement sleeve used in the nose/locking assembly of Makita pneumatic staplers. Fits Makita stapler models such as BST221 and the DST221 (examples: DST221F, DST221RFEX, DST221Z) and DST220 models.
This part is listed in Makita parts breakdowns as part number 450774-7 and is supplied as a single lock sleeve (1 pc.). It’s a direct-fit genuine Makita component intended to restore proper locking and alignment in the stapler nose when the original sleeve is worn or damaged.
Simple to swap into the nose assembly during routine repair — an inexpensive, reliable replacement that gets the tool back to safe, accurate operation. This genuine Makita replacement is documented in Makita parts lists for the stapler models above.
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