It was specifically designed to support commercial and military aerospace applications where close tolerance and high accuracy is required.38° Helix - 3810 Dream HP End Mills, RH Spiral, Corner Radius, Long Reach, 5/8 It excels in high speed profiling of titanium and aluminum and produces superior wall finishes. The 3810 Dream is a high performance end mill available with 6, 8, or 10-flutes..