1/4" Dia, 3/4" LOC, 2-1/2" OAL M.A. Ford Square End Mill, manufacturer part number 19225001A.
Specifications: Cutting Diameter: 1/4 in (0.2500 in); Length of Cut: 3/4 in; Overall Length: 2-1/2 in; Shank Diameter: 1/4 in; Number of Flutes: 3; Helix Angle: 20 degrees; Shank Type: Straight; End Type: Square.
Material: Solid Carbide. Coating/Finish: ALtima. Series: TuffCut DM. Unit of measure: Inch.