Genuine Bosch brush & spring set — part 2610005646. Replace worn carbon motor brushes and their contact springs to restore reliable speed and power in compatible rotary tools. Sold as a pair; each set contains two carbon brushes with copper leads and the matching compression springs.

Key details:

- Brush material: carbon with copper lead; spring material: metal.

- Brush nominal dimensions (each): overall length ~9.4 mm, width ~4.52 mm, height ~6.17 mm; contact bump diameter ~3.51 mm, bump height ~2.16 mm.

- Spring dimensions (uncompressed): wire ≈0.43 mm diameter, outside diameter ≈5.84 mm, uncompressed length ≈16.26 mm.

Compatibility Model used in the Dremel 4000 - Type F013400001 0- Cross reference with the 10 digit product code to confirm fit

Why swap them: worn brushes cause intermittent motor function, reduced power and increased sparking — replacing the brushes and springs is a quick fix that often brings the tool back to normal operation. Typical replacement is straightforward: remove the brush caps, withdraw the old springs and brushes, clean the cavity, and fit the new set.

This is the original Bosch / Dremel brush & spring set (2610005646) designed to match the original brush geometry and spring tension for proper contact and wear characteristics.

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