This magnetic induction heater coil kit is designed for fast, flame-free heating to help remove rusty bolts, nuts, and other stubborn metal parts. It includes 8 standard coils, 1 U-shaped coil, and 1 flexible free-forming coil for handling a wide range of sizes and irregular workpieces. Built with pure copper conductors and fiberglass wrapping, the coils are made for efficient heat transfer and durability. The kit is compatible with straight handle, angled handle, and split-type induction heating main units. It is well suited for automotive, equipment maintenance, and general repair applications.