Detailed description

Product advantages: 

1. The counterbore also locks the screws, 2 the position is not narrow enough, you can lock the screws, and 3 can still lock the screws on the side. 4. The operation is as simple as the ordinary electric screwdriver (no need to learn) 5. The screw tip can be seen directly, which is convenient for hole alignment. 6. The appearance is really high. 7. It takes 2-3 seconds to fix the screw from the screw out to the screw.

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