Feature: 1. HIGH WORK EFFICIENCY: This induction heating tool uses electromagnetic fields to heat metal, which is faster, more accurate, and more efficient, without any open flames caused by heating, ensuring the security of work environment. 2. LED AUXILIARY LIGHTING: The electromagnetic induction heater has LED light at the end, providing auxiliary lighting in the dark working area, helping you to clearly understand the progress of work and the status of heating objects. 3. 3 DIFFERENT COILS: This kit is equipped with 3 different sizes of heating coils, includes 20mm (0.79in) coil, 25mm (0.98in) coil, and 30mm (1.18in) coil, multiple coil models and sizes are available to meet different work needs. 4. 3.0MM BRASS CORE COIL: These induction heating coils are all made of 3.0mm brass core wire, which can be heated to a high temperature of 800?? for a long time, safe and reliable, and has a power saving effect of up to 30%. 5. COOLING SYSTEM: The flameless induction heater is equipped with cooling fan and overheating protection, which heats up without damaging nearby thermal sensor and prolongs the service life of the equipment. 6. WIDE APPLICATION: This magnetic induction heater kit is mainly used for heating rusty screws and nuts, and is used for heat processing of metal parts such as gear, pulley, and bearing in the automotive and mechanical fields. Specification: Item Type: Magnetic Induction Heater Model: FH-1500B Power Saving Effect: Up to 30% or more Working Frequency: 50-60Hz Rated Power: 1500W Heating Temperature: 800?? Heating Time of 800??: 5-30 seconds (the larger the object, the longer the time required) Heating Bolt Diameter: Cover the coil, and the coil can be adjusted freely Environmental Temperature: -40??-60?? Relative Humidity: