Its Screw bit coupler with a gear motor.

Gear motor dia should be 6mm for proper fitting.

Best gear motor for screw driver is 60 to 300 rpm. 

Take johnson gar motor. material Is PLA type. Infill rate 100%.

Recommend for low torque applications. Not for wood work purpose.

Screw Bit Coupler 2 Pcs

SKU: Screw bit Coupler
₹80.00Price

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