Schmidt offers two durable and extremely precise column mounted and benchtop dot peen marking systems. Standard marking fields range from 2" x 3" to 8" x 8". The Styliner® Mark3 and Mark4 computer controlled dot peen......Schmidt offers two durable and extremely precise column mounted and benchtop dot peen marking systems. Standard marking fields range from 2" x 3" to 8" x 8". The Styliner® Mark3 and Mark4 computer controlled dot peen pin marking machines are specifically designed to accommodate a variety of materials and part sizes. They are capable of marking flat, curved, convex, or concave parts, as well as, irregular and delicate surfaces