6mm Uni-Pro 4FL Necked 30? Std Length Carbide End Mill, Plain Shank, Firex Coated, 13mm LOC, 20mm Reach, 1mm Radius 13MM LOC,6MM SHANK,57MM OAL UNI-PRO R Right Hand 30? Helix, Right Hand Cut, 4 Flute Standard Length Universal General Purpose Center Cutting Carbide End Mill with 1mm Corner Radius, 20mm Extended Neck Relief, Plain Cylindrical Shank, Firex Coated Series 3562 Guhring Part #9035620060100