This blot will function for all manufacturers including: Irwin Pederson, Inland Manufacturing, Winchester, Quality Hardware, Saginaw Gear, National Postal Meter, IBM, Rockola, Standard Products, Underwood, and Saginaw Gear Steering Division S'G' .
It also works in most commercial manufacturers including Bullseye, Universal, Erma, Plainfield, Alpine, Auto Ordnance, Iver Johnson and National Ordnance.