Comparison : Item # D416100081, 4-Flute Cobalt Steel Single End Ball End Mills, Imported
Item # D416100121, 4-Flute Cobalt Steel Single End Ball End Mills, Imported
Item # D416100161, 4-Flute Cobalt Steel Single End Ball End Mills, Imported
Item # D416100201, 4-Flute Cobalt Steel Single End Ball End Mills, Imported
Item # D416100241, 4-Flute Cobalt Steel Single End Ball End Mills, Imported