The American Perforator 400-10 security perforator imprints smaller digits that are reduced in size (.036) to fit up to 10 digit perforations at once. The 400-10 perforates up to 25 sheets at a time and is a great companion for any office that needs more precise numbering of all secure documents. One of the most popular and longest lasting security perforators still around, this model continues to be used for code-numbering data and for numerical identification of all types of documents. The number and code numbers can be used for labels, applying expiration dates, i.d. tags, and more.