10Pcs 2.5mm Brass Core Induction Heater Coil Electric Heater Coil for the Removal of Rusty Nuts and Bolts and the Heat Treatment of Gears, Pulleys and Bearings [FLEXIBLE COILS FORREMOVAL] Includes 7 coils of multiple sizes to meet various needs, making it easy to operate and replace. [HIGH TEMPERATURE] Made with 2.5mm brass core wire, these coils can resist overheating and wear, reaching temperatures up to 1200℃. [WIDE APPLICATION] This induction heater coil kit is suitable for heat processing of gears, pulleys, and bearings, and for removing rusty nuts and screws. Specification: Item Type: Induction Heater Coil Product Specification: 10Pcs 2.5mm Brass Core Coil Combination (20 Type, 30 Type, 40 Type, Type Coil Each 2pcs, 50 Type, Flat Type Coil Each 1Pc) Material: Brass Brass Core: 2.5mm Application: Used to remove rusty bolts and nuts How to Use: Take out the product and install it before use. PackageList: 10 x Induction Coils 1 x Storage Box