5/16" Dia, 1/2" LOC, 2" OAL M.A. Ford Square End Mill, manufacturer part number 16931250A.
Specifications: Cutting Diameter: 5/16 in (0.3125 in); Length of Cut: 1/2 in; Overall Length: 2.0000 in; Shank Diameter: 5/16 in; Number of Flutes: 3; Helix Angle: 30 degrees; Shank Type: Straight; End Type: Square.
Material: Solid Carbide. Coating/Finish: ALtima. Series: TuffCut GP. Unit of measure: Inch.