Description Electromagnetic induction heating coil heater hot coil copper coil high frequency heating coil Features The induction coil kit includes seven of the most commonly used prefabricated diameter coils and one free coil, suitable for a wide range of applications. Includes: 1 x 18mm internal diameter, 1 x 22mm internal diameter, 1 x 28mm internal diameter. The length of the free-formed coil is 100cm. Each coil resists overheating and premature wear, designed for durable performance and repeated use. These induction coils are flexible and can be bent to meet various application needs. The induction coil kits are electroplated to resist oxidation and ensure consistent electrical contact, enhancing work efficiency. The coils are insulated for user protection and coated to resist wear. Replace the coil if insulation is damaged. Parameters Material: Copper Size: - Free coil: 100cm - 21x3cm, inner diameter: 1.8cm (diameter coil) - 21x3.5cm, inner diameter: 2.2cm (diameter coil) - 21x4cm, inner diameter: 2.8cm (diameter coil) Package includes 4 x Heating coils