20mm Uni-Pro 4FL Ball, Necked 30? Std Length Carbide End Mill, Plain Shank, Uncoated, 38mm LOC, 104mm OAL, 54mm Reach 38MM LOC,20MM SHANK,104MM OAL UNI-PRO Right Hand 30? Helix, Right Hand Cut, 4 Flute Ball Nose Standard Length Universal General Purpose Center Cutting Carbide End Mill, 54mm Extended Neck Relief, Plain Cylindrical Shank, Bright Uncoated Series 3306 Guhring Part #9033060200000