Comparison : Item # D4115498, Rougher Finisher End Mills, Cobalt Steel USA
Item # D41915500, Rougher Finisher End Mills, Cobalt Steel USA
Item # D41915502, Rougher Finisher End Mills, Cobalt Steel USA
Item # D41915504, Rougher Finisher End Mills, Cobalt Steel USA
Item # D41915506, Rougher Finisher End Mills, Cobalt Steel USA