Banggood Dear friend, It is not a defective item but the design of the nut which makes more easier to intall the collet. Could you try to install the collet to the nut first and then connect the holder to see whether it could work or not? If you have any other questions, please feel free to contact us. Best Regards Yuki
03/06/2024Nossa Empresa | Entre em contato conosco | Pagamento & Envio | Programas de Parceria |
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