Comparison : Item # D41165880, Long Length HSS 3/16" Shank 2 Flute Double Ball End Mills, USA
Item # D41165920, Long Length HSS 3/16" Shank 2 Flute Double Ball End Mills, USA
Item # D41165940, Long Length HSS 3/16" Shank 2 Flute Double Ball End Mills, USA
Item # D41165960, Long Length HSS 3/16" Shank 2 Flute Double Ball End Mills, USA