Original Makita compression spring — part number 233005-7 — designed to restore the axial tension in the bit/hammer assembly on select Makita drills and drivers. It's a small steel coil spring (sold individually) that fits inside the bit sleeve/anvil area to hold the sleeve and steel ball in place and return components to position after impact or bit release.
Key details
- Makita part no.: 233005-7 (listed as "COMPRESSION SPRING 13").
- Function/location: compression spring used in the bit sleeve / anvil / impact section to provide contact pressure and return force.
- Appearance/material: small metal coil spring, fitted to the sleeve/washer/steel-ball stack; sold one spring per part number.
Example Makita models that use this part (examples from Makita parts breakdowns)
- TD022DSE.
- DF010D / DF010DSE.
- TD021D / TD021DSE.
- DF012DSE.
- DTL061 (angle impact driver).
If your tool has a loose or missing spring in the bit/anvil assembly (sleeve and small steel ball nearby), replacing it with the original Makita 233005-7 will restore proper sleeve tension and bit retention.
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