Comparison : Item # D415250322, Regular Length 3-Flute Center-Cutting Roughing End Mills for Aluminum, Cobalt Steel USA
Item # D415250403, Regular Length 3-Flute Center-Cutting Roughing End Mills for Aluminum, Cobalt Steel USA
Item # D415250484, Regular Length 3-Flute Center-Cutting Roughing End Mills for Aluminum, Cobalt Steel USA
Item # D415250646, Regular Length 3-Flute Center-Cutting Roughing End Mills for Aluminum, Cobalt Steel USA
Item # D415250807, Regular Length 3-Flute Center-Cutting Roughing End Mills for Aluminum, Cobalt Steel USA