Thumb Key Numbering Machines from Short Order Products offer fast, manual imprinting with clean, consistent numbering for tags, plates, and industrial identification. Since 1989, our American engravings shop has specialized in durable marking products designed for long-term use. These machines make it easy to stamp serials, lot numbers, and sequence codes directly onto metal surfaces. With low minimums, affordable pricing, and fast delivery, we provide practical numbering solutions businesses rely on.