Comparison : Item # D415994040, Regular Length Cobalt Steel 3/16" Shank 4 Flute Double End Mills, Imported
Item # D415994050, Regular Length Cobalt Steel 3/16" Shank 4 Flute Double End Mills, Imported
Item # D415994060, Regular Length Cobalt Steel 3/16" Shank 4 Flute Double End Mills, Imported
Item # D415994070, Regular Length Cobalt Steel 3/16" Shank 4 Flute Double End Mills, Imported
Item # D415994080, Regular Length Cobalt Steel 3/16" Shank 4 Flute Double End Mills, Imported