Self-bonding coil/self bonded coil range from 0.05 inches to 4 feet ... from #6 AWG to #50 are available Self-bonding coil/self bonded coilPrecision-wound self-supporting coils range from 0.05 inches to 4 feet ... ,* Axial Lead RF Chokes,* Drum Core Power Inductors,* Universal Wound Coils,* Air Coils,* Ferrite Bobbin Coils, * Common Mode Toroids.