3/8" Dia, 1" LOC, 3" OAL M.A. Ford Square End Mill, manufacturer part number 13837511.
Specifications: Cutting Diameter: 3/8 in (0.3750 in); Length of Cut: 1.0000 in; Overall Length: 3.0000 in; Shank Diameter: 3/8 in; Number of Flutes: 3; Helix Angle: 36 degrees; Shank Type: Straight; End Type: Square.
Material: Solid Carbide. Coating/Finish: Uncoated. Series: TuffCut X-AL. Unit of measure: Inch.