C.S. Osborne No. 21 Single Edge Creasers
C.S. Osborne single edge creasers run along the edge of belts, straps, and leather goods to press one crisp decorative line, and can be used cold or heated for a darker finish. These No. 21 creasers come in five widths from 1/16" to 1/8", which set how far the line sits from the edge, all at one price. See Single Tickler Creasers for the No. 12 style.