COMPLETE TOOL KIT - To install MC4 solar connectors easily and accurately Precise crimping mold design and full locking ensure high crimping quality during repeated crimping (2.5/4/6mm²) HUMANIZATION HANDLE DESIGN - Comes with a set of dies in the handles for easy operation and energy saving APPLY TO - MC3 MC4 & TYCO Solar Connectors Crimping Tools / Solar PV Tool Kits MC4 SOLAR CRIMPING PLIER - Suitable for 2.5-6.0mm² solar panel PV cables. Its lightweight and compact design ensures perfect crimping effect.