General description MC3 MC4 Solar Crimping Tools are designed for easy and accurate installation of MC4 solar connectors. This complete tool kit includes crimping pliers suitable for 2.5-6.0mm² solar panel PV cables, along with 20 MC4 male and female solar panel cable connectors and a pair of MC4 solar connector spanner tools. The precise crimping mold design and full locking mechanism ensure high crimping quality during repeated use, while the lightweight and compact design guarantees a perfect crimping effect. Technical specifications Compatible cable sizes: 2.5mm², 4.0mm², 6.0mm² Includes 20 MC4 male and female connectors Includes 1 pair of MC4 solar connector spanner tools