5/8" Dia, 2-1/2" LOC, 4-5/8" OAL M.A. Ford Square End Mill, manufacturer part number 12262500.
Specifications: Cutting Diameter: 5/8 in (0.6250 in); Length of Cut: 2-1/2 in; Overall Length: 4-5/8 in; Shank Diameter: 5/8 in; Number of Flutes: 4; Helix Angle: 30 degrees; Shank Type: Straight; End Type: Square.
Material: Solid Carbide. Coating/Finish: Uncoated. Series: TuffCut GP. Unit of measure: Inch.