Nonspalling M-E-Conomy produces clear, legible marks on forgings, castings, machine parts, metal bars, and tools. Holder accommodates single or double row of any number of characters in type sizes up to 1/2 inch. One-piece, turned-shank marker construction minimizes weight. Type slot lasts as long as holder without remachining. Shepherd pin retainer is interchangeable among different-size pocket holders. Snap-Slide retainer, which prevents loss or misplacement of pin, is optional.