The Jumperkits Micro 64 square probes can be used for various applications including automotive, commercial vehicles, engine-management systems, powertrain-control systems, ABS systems and airbag systems. These Micro 64 probes are available in packs of three male and three female probes. The male pin measures 0.64mm. These probes fit terminals found in the various models of Buick, Cadillac, Chevrolet, GMC and Pontiac vehicles.