In this article we examine and interpret a cattle-bone assemblage from the small town of Rauma, Finland, dating to the early 18th century, exhibiting evidence for large-scale raw bone material collection and preparation. Sawn ends of bovine metapodials originating from at least 230 individuals were found in shallow pits near the town border. Bones from adult male cattle dominated the sample. The uniformity of the craft process, careful selection of the bones and the concentrated deposition of the waste indicate a professional large-scale operation aimed at preparation of half-finished products. The shafts were probably not worked further at this site. It is likely that metapodial shafts were exported to larger cities, such as Stockholm, because Rauma, or possibly even the whole of 18th-century Finland, would not have had the markets for such a large number of end products.