1Professional design, provides better panel separations than a panel cutter. 2Easily separate spot-welded panels without distorting the sheet metal. 3Separate spot-welded sheet metal, panel, etc and cut small access holes. 4High strength and hardness, durable in use. 5Double sided 3/8 inch rotary cutter and hex Shank fit most drills.Features: Professional design, provides better panel separations than a panel cutter. Easily separate spot-welded panels without distorting the sheet metal. Separate spot-welded sheet metal, panel, etc and cut small access holes. High strength and hardness, durable in use. Double sided 3/8 inch rotary cutter and hex Shank fit most drills. Specification:Material: MetalColor: Shown as picture How to Use:1. Fix the welding spot with the nail in the front, then press down(The back of the nail has a spring device that can stretch). 2. When the saw tooth tooth touches the welding surface, the solder joint can be removed by matching the electric rotary tool. Package list: 1 x Spot Weld Drill 10 x Double Sided Cutters2 x Pilot Pins