These Kodiak Cutting Tools® micro three flute long reach/long flute carbide end mills feature a 30 helix angle and are center cutting for plunging, slotting and profiling. As with all of our solid carbide tools, these end mills are manufactured using state-of-the-art machinery, manufacturing processes and inspection techniques, making them the preferred choice of carbide endmills for machinists wanting to produce high quality parts with maximum tool life. These miniature end mills feature a necked portion behind the flutes, shown in the table below as the reach.Premium Sub-Micrograin Solid Carbide End Mill3 FluteSquare EndSingle End 30° Helix1/8" Shank x 2-1/2" Overall LengthLong Reach with Long FlutesCenter Cutting Carbide EndmillALTIN Coating: A high performance coating for milling stainlesssteels, carbon steels, alloy steels, and cast iron. This coating is extremely heatresistant and can be used with or without coolant. It is exceptional in difficultto machine materials where adhesive wear is particularly high.View Carbide End Mill Speeds & FeedsCarbide End Mill TolerancesSize RangeDiameterShankAll Sizes+.0005, -.0005-.0001,-.0003