5PCS 4mm to 4mm Inner Dia Rotatable Universal Steering Shaft U Joint Coupler L23XD9 Scissors the current could be calculated

the current could be calculated by DC ammeter when a shunt drops the voltage

You can set a pipe lever on the bracket

low cost material offering good electrical and mechanical characteristics

Electronic Enclosure Junction Box

5PCS 4mm to 4mm Inner Dia Rotatable Universal Steering Shaft U Joint Coupler L23XD9 Scissors the current could be calculatedProvides torque transmission and alignment. Cost effective coupling design. Nickel coated Iron is good in corrosive environments. Specifications: Product Name: Universal Joint Size: 23mm x 9mm 0. 91in x 0. 35in (L*D) Bore Diameter: 4mm to 4mm 0. 16 inch to 0. 16 inch Material: nickel coated iron Net Weight: 8g Main Color: Silver Tone Package Content: 5 x Universal Joint