Genuine Makita 310300-3 — Spring guide for finishing/orbital sanders. This precision guide locates and retains the return spring inside the pad/drive assembly so your sander’s counterbalance and paper clamp operate correctly.

Physical details: outer diameter ≈ 7.5 mm, inner bore ≈ 4.5 mm, height ≈ 13.5 mm — sized to fit the spring seat in the BO3710 / BO3711 sanders.

Compatible models (examples): BO3710 and BO3711 are listed assemblies that use this part; it is also referenced for several DBO-series orbital sanders (DBO380 / DBO381 and similar models).

Notes for repair: the part is supplied as the original Makita spring guide and is shown in official parts diagrams as the spring guide item (typically two per BO3711-style tool). As a standard entry in Makita parts lists, this genuine Makita component is the straightforward replacement when the original guide is worn or lost.

Jump straight to the Makita spare parts diagrams:

• Makita 3710 Parts
• Makita 3711 Parts
• Makita BO3710 Parts
• Makita BO3711 Parts
• Makita DBO380 Parts
• Makita DBO381 Parts

Browse our full range of Makita sander parts.