BM5331 is a professional crimping and soldering tool manufactured by BM Group. It is designed to efficiently crimp and solder sleeves ranging in size from 25 to 50mm2. It has a self-adjusting, precision-ground head for an optimal balance of accuracy and speed while making connections. The BM5331 also features a built-in LED light for optimal illumination in the work area, and includes two spare dies for added versatility. It is light-weight and easy to use, allowing for faster installation of wires and cables.