Standard Pack = 1 piece(s). Number of Flutes=3; Material=Carbide; End Type=Square; Flute Type=Stub; Diameter=.065"; Shank Diameter=.125"; OAL=2.5"; Flute Length (FL)=.098"; Reach Length (RL)=.525" [8X]; Helix Angle=30degree ; Single End/ Double End =Single; Tolerance=+/- .0005";