The BU-75K is Mueller's insulated miniature Kelvin clip. Because this clip is Kelvinized, the jaws are electrically isolated from each other, making this clip great for 4-wire resistance testing or...
The BU-46C is a solid copper, miniature battery clip with a pair of flexible PVC insulators. Can connect to wire up to 10 AWG via crimp or solder connection.
The BU-46C-L is a solid copper, miniature battery clip with a pair of long, flexible PVC insulators. Can connect to wire up to 10 AWG via crimp or solder connection.
The BU-46A is a copper-plated steel, miniature battery clip with a pair of flexible PVC insulators. Can connect to wire up to 10 AWG via crimp or solder connection.