Comparison : Item # D415824081, 4-Flute HSS Single End Ball End Mills, Imported
Item # D415824121, 4-Flute HSS Single End Ball End Mills, Imported
Item # D415824161, 4-Flute HSS Single End Ball End Mills, Imported
Item # D415824201, 4-Flute HSS Single End Ball End Mills, Imported
Item # D415824241, 4-Flute HSS Single End Ball End Mills, Imported