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  • 30/03/2018

    For connecting the brushless moter with the (flex)shaft. Motor shaft 4mm to (flex)shaft 3mm. The coupler itself is 26mm long with a diameter of 11.3mm. The two screws for fastening the motor shaft use a #2 hex wrench. The weight is 13grams.

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  • 01/11/2021

    3.17to4 under trial

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