A high precision interchangeable Marking Tool Set for quick, straight and accurate multi-character marking by hand and hammer. Sharp Faced engraving style to produce clear positive impressions. Comprises 100 alpha-numeric and punctuation characters according to the most common use plus spacer pieces for non-marking positions and a single row Hand Holder supplied in a strong case with inserts for accurate storage. Available in 9 Character heights. Produce permanent readable impressions on on a range of materials including metal and plastic up to a maximum hardness of 37 Rockwell C. Ideal for all batch and general purpose marking applications.