Crimp Lugs 10mm has 6mm hole, 16mm has 8mm hole, 25mm has 8mm hole, 35mm has 10mm hole. Type of use: For use in arc welders as a connection between the energy source and the electrode holder. 10/25 Plug Fits into the 9mm welding connector hole on your machine 35/50 Plug Fits into the 13mm welding connector hole on your machine.
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