0.0001,-. These stub length miniature end mills feature a length of cut 1-1/2 times the cutting diameter of the tool.Premium Sub-Micrograin Solid Carbide End Mill2 FluteSquare EndSingle End 30° Helix1/8" Shank x 1-1/2" Overall LengthStub Length - Length of Cut = 1-1/2X's DiameterCenter Cutting Carbide EndmillView Carbide End Mill Speeds & FeedsCarbide End Mill TolerancesSize RangeDiameterShankAll Sizes+.