VEVOR Induction Heater Coil Kit Induction Coils 8PCS For Removing Rusty BoltsProduct Features 8 PCs Coil Kit This induction coil kit includes eight most commonly used coils of different lengths to remove rusty bolts and fits a wide range of applications. 8 pieces: 2 x 4 5"(8" Length), 2 x 1 1 5"(6" Length), 2 x 1 1 5"(8" Length), 2 x 1 1 5"(12" Length) Long Lifespan Each coil can resist overheating and premature wearthey are all durable enough to be used at least several hundred times. Great Flexibility These induction coils