This portable 18650 battery spot-welding polishing tool is designed for removing residual solder spots and nickel-strip remnants from disassembled battery cells. The handheld grinding accessory features a diamond grinding head and is intended for use with compatible lithium electric hand drills. Compact and practical for battery repair and DIY projects, it helps prepare cell surfaces for further work. Accessories are sold separately. Use only as directed and never with grinding machines or incompatible equipment.
