Serial numbers is effortlessly engraved on metal components, With a unique design that guarantees sequential advancement of the digits The timing is precise and self-regulating, Ensuring evenly distributed, And uniformly deep throughout, Impressions are consistently aligned the component component !description Key attributes of the bradma rotary type numerators wheels made from special tool steel. Advancing cams machined into solid wheels cam material equally resilient to stamping characters. Extra wide unit wheel for longer life. One piece actuating pawl machined from solid bar. Direct reading characters to check set, Up no riveted assembly easy to dismantle and clean by user. Unique design of holding catch and springs. Special automatic rotary numerators automatic rotary enhanced numerator options than 10 wheels numerators with alpha numeric and / or special wheel combination. Inward / outward curvature numerators for curved surfaces high performance numerators for longer life. Composite marking-enabled numerators logo or repeated fixed data along with serial numbers. Numerators for marking at red hot temperature or numerator with heating arrangement. Unique numerators featuring calligraphy.