A product stocking device is disclosed that retains a plurality of display packages, so that the plurality of display packages are readily aligned for simplified mounting onto a display hanger. Filling the plurality of plasma treated cavities in the production tool with an abrasive slurry, and at least partially curing the abrasive slurry while residing in the plurality of cavities. The guider for conveying a sheet-shaped object of the present invention simplifies the structure of the guider, and meanwhile reduces the manufacturing cost of the guider. The pilot tone receiver detects each identification signal from the optical energy received and determines its corresponding amplitude. A biasing member maintains the insert at the first position during a trimming operation when the cutting edges of the insert and the die trim the scrap from the workpiece.