Quick view Castrol Ilocut EDM 401 - 55 Gallon Drum Description: Castrol IlocutTM EDM 401 is an oil-based electric discharge machining (EDM) fluid. The dielectric strength, low viscosity and high flash point of this fluid make it well suited for many EDM operations. Application: Ilocut EDM 401 is... $832.28 Add to Cart Compare