EE WAS SHEARING A PIECE OF 1/4 INCH STAINLESS STEEL PLATE FOR THE LAB. AS HE WAS SHEARING OFF A CORNER OF THE PLATE, THE FOOT ON THE SHEAR MACHINE CAME DOWN TO HOLD THE PLATE. HIS RIGHT THUMB WAS CAUGHT BETWEEN THE FOOT AND THE PLATE, AMPUTATING THE TIP OF HIS RIGHT THUMB APPROXIMATELY 1/2-3/4 INCHES.