SVS-50 Multi Jig is effectively 2 jigs in 1. It contains a housing with an open and closed seat. Use the SVS-50 Multi Jig to sharpen your straight and rounded wood-turning gouges and tools as well as parting tools and woodcarving tools. The SVS-50 Multi Jig has a closed and open seat function. It allows you to sharpen the edge of chisels, gouges, and more. The SVS-50 Multi Jig can sharpen both straight or rounded-edge woodworking tools. When you’re finished sharpening one side, you simply flip the jig upside down and sharpen the other edge of the tool. It’s best to use the TTS-100 Turning Tool Setter with the SVS-50 Multi Jig when sharpening woodturning tools.