The Induction Innovations Mini-Ductor Long Coil Kit enables the user to gain greater access with Invisible Heat on hard-to-reach areas where torches can’t go. The Long Coil Kit, No. MD99-675, for use with the Mini-Ductor II and Inductor U-555. This kit offers popular sizes with extra-long 13” leads. The kit comes in a transparent case with eight pre-formed coils, with an I.D. ranging from 3/4” to 1-3/4”, giving the tools a larger array of applications.