This comprehensive coil cleaning set combines a circular fin straightener, comb, and radiator brush to address varied fin densities while protecting delicate aluminum heat exchanger surfaces Professional 3pcs Fin Comb Set with stainless steel teeth and ABS handles efficiently straightens bent fins, removes debris from condenser coils, and restores optimal for HVAC Features adjustable depth stainless steel comb teeth, color coded 6 in 1 fin comb and aluminum construction for long lasting coil maintenance Ideal for HVAC technicians, appliance repair specialists, and homeowners seeking professional tools to maintain split air conditioners or commercial refrigeration units Perfect for routine maintenance of window units, evaporators, or car radiator coils where bent fins reduce cooling efficiency and energy consumption