4mm Uni-Pro 4FL Ball, Necked 30? X-Long Carbide End Mill, Plain Shank, Firex Coated, 25mm LOC, 75mm OAL, 47mm Reach 25MM LOC,4MM SHANK,75MM OAL UNI-PRO Right Hand 30? Helix, Right Hand Cut, 4 Flute Ball Nose Extra Long Length Universal General Purpose Center Cutting Carbide End Mill with 47mm Extended Neck Relief, Plain Cylindrical Shank, Bright Uncoated Series 3043 Guhring Part #9030430040000