Powerful 1800W Fast Heating Performance: This 1800W high-power induction heater adopts flameless magnetic heating technology, which can quickly heat metal components up to 1800℃. It effortlessly loosens rusted bolts, seized nuts, bearings and gears, and will not cause damage to nearby rubber, plastic or painted parts during operation. 4 Multi-Size Coils for Wide Application: The package is matched with 4 different specification coils, compatible with bolts and nuts of various sizes. Flexible coils can adapt to narrow and confined working spaces, perfect for automotive servicing, mechanical maintenance and metal heat treatment. Not applicable for copper and aluminium materials. Effective Cooling & Overheat Protection: Built-in high-efficiency cooling fan accelerates heat dissipation. Equipped with intelligent overheat protection function, the device will automatically stop working when overheating, effectively prolong the service life and guarantee safe use all the time. Durable Aluminium Case for Storage & Transport: Comes with a premium aluminium storage case, which can well organize and protect the main unit and all accessories. It is sturdy, portable and space-saving, convenient to carry to different work sites or store in your workshop. Ergonomic Handheld Design for Comfortable Use: Featured with ergonomic non-slip grip, the handheld heater reduces hand fatigue even after long-time use. Coils can be replaced quickly and easily, the lightweight body and simple operation make it friendly for both professional mechanics and DIY users.