Feature:1. HIGH WORK EFFICIENCY: Induction heating tool heats metal with electromagnetic field, faster and more accurate than oxy acetylene systems. No open flame for safety.2. HIGH STRENGTH WORK AREA (LED): Built in LED light for nut removal provides illumination in dark settings. Monitor work progress and object status clearly.3. 3 COIL SIZES: Kit includes 3 coil sizes (0.79in/20mm, 0.98in/25mm, 1.18in/30mm) for versatile work adaptation, ensuring smoothly workflow.4. 3.0MM BRASS CORE: Coils made with reliable 3.0mm brass core withstand high temperatures up to 800. Energy saving, up to 30% more efficient than electric coils on the market.5. COOLING SYSTEM: Induction heater has a cooling fan and overheating safety for prolonged device life without damaging nearby heat sensitive components. Enhanced durability with thermoplastic outer casing.6. WIDE APPLICATION: Magnetic induction heater kit is mainly used for loosening nuts and rusted screws, as well as heat treatment for various small metal parts in automotive, mechanical, and industrial applications.Specification:Item Type: Magnetic Induction Heater KitMode: FH 1200Power Saving Effect: Power Saving Up To 30%Operating Frequency: 50 To 60hzRated Power: 1200wHeating Temperature: 800Heating Time Of 800: 5 to 40 Seconds (The Larger The Object, The Longer The Time)Heating Bolt Diameter: Coil Can Be Covered, Coil Can Be Freely AdjustedAmbient Temperature: -40 to 60 Relative Humidity: