Urethane Coating | For Use on Doors, Windows, Crown Molding, Trim, Siding, as Well as Kitchen & Bath Applications | Hex-Key Ends Are Square-Cut for a Secure Full-Depth Fit and Maximum Contact With the Hex Socket to Prevent Slippage and Stripping of the Socket | On Motor Windings, Terminals, Bus Bars, Commutator Ends, Stator Coils, and Pc BoardsFurbay Electric Supp