5/64"Diameter 3/16"LOC 4FL 40° TiCN Single End Carbide End Mill USA #42177,End Mill USA #42177 5/64"Diameter 3/16"LOC 4FL 40° TiCN Single End Carbide, Standard Thread Insert, Milling & Special Form Tools, Vises & Work Holding, Speeds & Feeds For Standard End Mills, Made in U,S,A, Hand Tools, Threading & Thread Repair,Hole Making & Finishing Tools, Carbide End Mill USA #42177 5/64"Diameter 3/16"LOC 4FL 40° TiCN Single End.