The Steel Balancing C-Clamps are used as permanent correction weights on vane axial flow fans and squirrel cage fans. The clamps have a serrated surface opposite the set screws which acts like a second set screw.
Air foil clips are used on blowers manufactured by Trane, Carrier, Twin City and others. Teflon Coated Air Foil Clips are coated with Teflon for chemical resistance. These clips have an average throat size of 1.2″. The depth averages 1.2″.