Overview Reviews Product Description This coil kit is an accessory for the Mini-Ductor® series and the Inductor® series U-555 The kit enables you to heat and release seized nuts and bolts up to 1.5" in diameter and other metallic hardware from corrosion and thread lock compounds Product Videos Custom Field Product Reviews Write a Review Write a Review × Induction Innovations Mini-Ductor® Standard Coil Kit MD99-650 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *