Insert tool Duplex 28 SKL for leather

Complete tool for hitting upholstered buttons in size 28. SKL is a special insert that is designed to be used when making buttons in leather or artificial leather, which can be difficult with the usual insert. The duplex insert is suitable for machines A 5 and A 51, but also for some other simple models on presses. See the "regular" duplex for description of how it is used.