Prevent Overheating Sensitive Electronic Components with the Craftsman 4-pc. Electronic Component Solder Kit Precision is of utmost importance when soldering sensitive electric equipment, and the 4 pc. Electronic Component Solder Kit includes four accessories to aid in accuracy and efficiency while soldering. The kit includes a heat sink tool, wire brush, scraper and dual probe tool, too. Before soldering, use the wire brush and scraper tools to prepare the surface. While using soldering irons and guns, the dual probe and heat sink tools help position and secure small components. The heat sink tool can also be used to distribute melted solder efficiently. Solder with confidence using Craftsman's 4-pc. Electronic Component Solder Kit. It comes with helpful accessories to prevent overheating and aid in precision soldering for sensitive electronic components, such as household electrical wires and computer boards. '